is there a socials account worth following
Question · by undecided_on_sutter · Member since Sep 2026 · 1 post · 7w7 weeks ago
Per Diem
UnclaimedAmerican restaurant in San Francisco, CA
4.3 · 633 reviewsOpens today at 11:30 AMOpens today at 11:30 AM
Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space.
Eligible to offer 20% cashback to customers who shop here.OrbitBack
Add your name so AI can say who owns the business
Unclaimed · Never replied · Add the year you opened so AI can say how long you've been open
ConfirmedVisitor submittedAI guess
Updated Sep 9, 2026Last activity 1 month ago, a question from undecided_on_sutter.
Locals
4 asked · 0 answered by Per Diem
Busiest day at Per Diem, anyone know?
Question · by long_overdue_in_sf · Member since Aug 2026 · 2 posts · 7w7 weeks ago
Worth the hype at Per Diem?
Question · by sutter_otis · Member since Sep 2026 · 1 post · 7w7 weeks ago
best american restaurant in San Francisco
Question · by no_rush_in_sf · Member since Jul 2026 · 3 posts · 7w7 weeks ago
Services
What Per Diem offers, what it costs, and what people come for.
Photos
Add media AI can read
No code detected[Photo 1]
No code detected[Photo 2]
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No code detected[Photo 4]Team
Who you'll see, and whether their licenses check out.Visit
When it's quiet, where to park, and what's nearby.
When to visit
Closed right nowFriday is usually the quietest day.
Busiest Tuesday and Wednesday from noon to 8.
Busy times
Foot traffic by day and hour. Darker is busier.SunMonTueWedThuFriSat
11 AM
12 PM
1 PM
2 PM
3 PM
4 PM
5 PM
6 PM
7 PM
8 PM
BusyEmpty
Best place to park
Add your parking so AI can tell people where to parkGetting in
Add how to find your door so AI can walk people inAddress43 Sutter St, San Francisco, CA 94104, USA
Phone(415) 888-8811
Websiteperdiemsf.com
Mon to Fri11:30 AM to 9 PM
Sun, SatClosed
Around San Francisco
Caffe Bianco is next door for a coffee. Paris Baguette is next door for a bakery.
- 1Caffe BiancoCafe · next door
- 2Paris BaguetteBakery · next door
- 3Market St & 2nd StTransit stop · next door
- 4SUR Cafe MediterraneanMediterranean restaurant · next door
- 5RestaurantCoffee shop · next door
- 6Holbrook HouseRestaurant · next door
Nearby places from Google Maps, read Sep 19, 2026.
All the details
Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.
Listing
NamePer Diem - Financial District
Primary categoryAmerican Restaurant
Other categoryAdd this so AI can answer it
Opening dateAdd this so AI can answer it
Contact
Phone(415) 888-8811
Websiteperdiemsf.com
Menu linkAdd this so AI can answer it
Booking linkAdd this so AI can answer it
MessagingAdd this so AI can answer it
Location
Address43 Sutter St, San Francisco, CA 94104, USA
Plus codeAdd this so AI can answer it
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Service areaAdd this so AI can answer it
Hours
Monday11:30 AM to 9 PM
Tuesday11:30 AM to 9 PM
Wednesday11:30 AM to 9 PM
Thursday11:30 AM to 9 PM
Friday11:30 AM to 9 PM
SaturdayClosed
SundayClosed
Special hoursAdd this so AI can answer it
Holiday hoursAdd this so AI can answer it
Accessibility
Wheelchair-accessible entranceAdd this so AI can answer it
Wheelchair-accessible parkingAdd this so AI can answer it
Wheelchair-accessible restroomAdd this so AI can answer it
Wheelchair-accessible seatingAdd this so AI can answer it
Assistive hearing loopAdd this so AI can answer it
Payments
MastercardAdd this so AI can answer it
American ExpressAdd this so AI can answer it
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Debit cardsAdd this so AI can answer it
Apple PayAdd this so AI can answer it
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Service options
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Walk-insAdd this so AI can answer it
Onsite servicesAdd this so AI can answer it
Online appointmentsAdd this so AI can answer it
Online estimatesAdd this so AI can answer it
Amenities
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Gender-neutral restroomAdd this so AI can answer it
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The business
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Team
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Licenses and credentials
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Prices
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Booking and policies
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Children in the waiting roomAdd this so AI can answer it
Offers and programs
Gift cardsAdd this so AI can answer it
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Financing partnerAdd this so AI can answer it
Military or teacher discountAdd this so AI can answer it
Customers
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Average spend per visitAdd this so AI can answer it
Most popular first visitAdd this so AI can answer it
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Busiest monthAdd this so AI can answer it
Community and charity
CharityAdd this so AI can answer it
Donated last yearAdd this so AI can answer it
Volunteer hours a yearAdd this so AI can answer it
Local sponsorshipAdd this so AI can answer it
Free or reduced-cost servicesAdd this so AI can answer it
Recognition and memberships
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BBB profileAdd this so AI can answer it
Press linkAdd this so AI can answer it
Speaking or teachingAdd this so AI can answer it
Brands and products
Links
Websiteperdiemsf.com
Instagraminstagram.com/perdiemsf
FacebookAdd this so AI can answer it
YouTubeAdd this so AI can answer it
LinkedInAdd this so AI can answer it
Google reviewsAdd this so AI can answer it
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Story and values
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What makes it differentAdd this so AI can answer it
Eco practiceAdd this so AI can answer it
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Growth
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Open jobAdd this so AI can answer it
New location plannedAdd this so AI can answer it
Year-over-year growthAdd this so AI can answer it
Busy times
11a
2p
5p
8p
Closed now. Busiest Tue and Wed, noon to 8.
Reputation
What reviews, press and directories say about Per Diem.
Reviews
Add reviews AI can read4.3from 633 reviews on Google
While many enjoy the pan seared salmon and firecracker potatoes, inconsistent service and food quality lead to mixed reviews. Per Diem in the Financial District offers a mix of stylish ambiance and a casual dining experience. However, customer experiences vary widely, with some enjoying the food and service while others report significant issues with wait times and staff interactions.
- 572%
- 416%
- 34%
- 24%
- 14%
Would go back88%88% of reviews give the visit 4 or 5 stars.Positive 88%, 4 or 5 stars · Neutral 4%, 3 stars · Negative 8%, 1 or 2 stars
The good
- Pan seared salmon
- Firecracker potato appetizer
- Julian's attentive service
The bad
- Long waits for food and service
- Rude staff interactions
- Mediocre food quality
Press and awards
Add press AI can readDirectories
Add to directories AI readsUpdates
Post an updateHow AI sees Per Diem
The AI Score is out of 100, read from 8 signals across search and AI.
25out of 100
32 San Francisco avg
What the score is made of
Signal and how much it countsPer Diem
- Retrieval grounding 26%Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on.0
- Off-property attestation 20%Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability.39
- AI visibility 14%Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service.0
- Reviews & response 12%The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim.78
- Backlink & citation authority 8%Domain authority and editorial quality of the sources that attest to you.57
- Google Business Profile 8%Required and recommended fields; update cadence. The listing AI pulls from first.90
- Speed & mobile 7%Core Web Vitals at the 75th percentile, on a real phone.
- Content freshness & schema 5%Crawl recency, intent alignment, valid JSON-LD, canonicals.77
Every business is scored the same way, and nobody can pay for a better score.
See exactly what AI says about you, and how to get picked
Per Diem, as AI sees it. Blue signals help Per Diem, and red ones hold it back.
- The questions people ask ChatGPT and Gemini about american restaurants in San Francisco, and who they name instead of you
- What AI gets wrong about you, next to what’s true
- What to change first so AI names you
Claiming your page is free.
What AI reads
The page ChatGPT, Gemini, Perplexity and Google read about Per Diem. The code version is exactly what their crawlers get.
Local AI Registry · American restaurants in San Francisco, CA · Editorial
Per Diem, San Francisco CA: Reviews
By Steve Lee, founder and CEO of Local AI Registry. Updated September 9, 2026.
Published September 9, 2026 · Updated September 9, 2026 · Machine-readable version below
In short
Per Diem is an american restaurant in San Francisco, CA. Its AI Score is 25 of 100, which is poor.
What each mark on this page means: https://localairegistry.com/methodology#marks
Key facts
| Fact | Value |
|---|---|
| Type | American restaurant |
| Address | 43 Sutter St, San Francisco, CA 94104, USA |
| Hours | Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun |
| Phone | (415) 888-8811 |
| Rating | 4.3 across 633 reviews on Google |
| Quietest time | Friday |
| Updated | September 9, 2026 |
All the details
Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.
| Group | Fact | Value | Mark | Evidence |
|---|---|---|---|---|
| Location info | Address | 43 Sutter St, San Francisco, CA 94104, USA | Confirmed | Google Business Profile |
| Location info | Description | Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space. | Confirmed | Google Business Profile |
| Location info | Hours | Mon to Fri 11:30 AM to 9:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile |
| Location info | Name | Per Diem - Financial District | Confirmed | Google Business Profile |
| Location info | Phone | (415) 888-8811 | Confirmed | Google Business Profile |
| Hours | Monday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile |
| Hours | Tuesday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile |
| Hours | Wednesday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile |
| Hours | Thursday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile |
| Hours | Friday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile |
| Hours | Saturday | Closed | Confirmed | Google Business Profile |
| Hours | Sunday | Closed | Confirmed | Google Business Profile |
| Services | Service | Californian cuisine | AI guess | |
| Services | Service | Dine-in service | AI guess | |
| Services | Service | Italian cuisine | AI guess | |
| Links | https://instagram.com/perdiemsf | AI guess | Our record | |
| Links | Website | http://www.perdiemsf.com/ | Confirmed | Google Business Profile |
Services and prices
Known for
The team
Visiting Per Diem
Address: 43 Sutter St, San Francisco, CA 94104, USA. Phone: (415) 888-8811. Hours: Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun. (Confirmed, Google Business Profile.)
Location info from Google Business Profile
From Google Business Profile: "Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space."
When to go
Quietest day: Friday. Busiest day: Tuesday. From the popular times on its Google listing.
Parking and getting in
Add your parking so AI can tell people where to parkAdd how to find your door so AI can walk people in
Nearby
| Place | Type | Distance |
|---|---|---|
| Caffe Bianco | Cafe | 1 min walk |
| Sutter St & Sansome St | Bus stop | 1 min walk |
| Paris Baguette | Bakery | 1 min walk |
| Market St & Sansome St | Bus station | 1 min walk |
| Market St & 2nd St | Transit stop | 1 min walk |
| SUR Cafe Mediterranean | Mediterranean restaurant | 1 min walk |
Reputation
4.3 average across 633 reviews: Google 633. (Confirmed, read September 9, 2026.)
While many enjoy the pan seared salmon and firecracker potatoes, inconsistent service and food quality lead to mixed reviews. (AI guess, from 633 reviews.)
What people like
- Pan seared salmon
- Firecracker potato appetizer
What people do not like
- Long waits for food and service
- Rude staff interactions
- Mediocre food quality
Press
Awards
Directories
Questions people ask
is there a socials account worth following
best american restaurant in San Francisco
Worth the hype at Per Diem?
Busiest day at Per Diem, anyone know?
anything people actually moan about here?
address for this place, anyone have it?
lunch near Sutter, what is good
walking in for a first visit, what happens
opening hours here, what are they these days?
On a budget in San Francisco, is Per Diem the one?
What american restaurant questions is San Francisco asking AI most?
do I need to book Per Diem in San Francisco or can I just turn up?
prices round here, anyone got a number
Per Diem, any chance to get a table this week?
rough idea what Per Diem costs?
torn between this place and Wayfare Tavern?
the good stuff about Per Diem, what is it?
Open Saturdays here?
The AI Score: 25 of 100
It measures how likely AI engines are to recommend a business, and how accurately. San Francisco american restaurants run 24 to 62. Fair starts at 45, good at 65. Per Diem scores 25, below the San Francisco average of 32. The same method scores every business on the registry.
| Signal | Weight | Score | What it measures | Per Diem |
|---|---|---|---|---|
| Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor |
| Off-property attestation | 20 | 39 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Poor |
| Reviews & response | 12 | 78 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good |
| Backlink & citation authority | 8 | 57 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | Core Web Vitals at the 75th percentile, on a real phone. | ||
| Content freshness & schema | 5 | 77 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |
Full method: https://localairegistry.com/methodology
How AI decides what to say about an american restaurant: https://localairegistry.com/methodology#how-ai-decides-local-business. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-local-business
Entity map
Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.
| Entity | Type | ID on this page | Same as | Relationship to Per Diem |
|---|---|---|---|---|
| Per Diem | LocalBusiness | #business | http://www.perdiemsf.com/ | Subject of this page |
| San Francisco, California | City | #city | City Per Diem is in | |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team/steve-lee | Author of this page |
Topical map
Where this page sits in the registry. It's one profile among the american restaurants in San Francisco, linked to the lists and towns around it.
Lists
- Best american restaurants in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco/american-restaurant
- Best businesses in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco
Nearby
- /san-jose: https://localairegistry.com/leaderboards/ca/san-jose
- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /mountain-view: https://localairegistry.com/leaderboards/ca/mountain-view
- /santa-clara: https://localairegistry.com/leaderboards/ca/santa-clara
Every list
- Every leaderboard in California: https://localairegistry.com/leaderboards/ca
References
Show references (2)
Sources cited
- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJs-CCd2KAhYAR8Ru06zrZe6c (accessed Sep 9, 2026)
- [2] AI engine output: ChatGPT, read by Local AI Registry on Sep 12, 2026; Gemini, read by Local AI Registry on Sep 9, 2026, https://localairegistry.com/methodology (accessed Sep 19, 2026)
The code behind this page
This is exactly what this page sends to Google, Bing, ChatGPT, Claude, Perplexity and Gemini. We publish it in the open for two reasons: so you can see nothing here is hidden or made up, and so any business or developer can copy it. Being a good local AI steward means the machine version says exactly what the human version says.
1. HTTP response headers
Sent before the page. They tell crawlers the canonical address and that a plain markdown copy exists.
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2. Head tags
Title, description, canonical, robots and Open Graph tags. This is what shows in search results and link previews.
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3. Structured data (JSON-LD)
One connected graph. Every person and service has its own @id and links to the business, and a licensed person links to the license and the board that issued it.
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# Per Diem, San Francisco CA: Reviews Source: Local AI Registry, https://localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca. Free to reuse with a link back. By Steve Lee, founder and CEO of Local AI Registry. Updated 2026-09-09. Canonical: https://localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca ## Photos -  -  -  -  -  ## In short Per Diem is an american restaurant in San Francisco, CA. Its AI Score is 25 of 100, which is poor. What each mark on this page means: https://localairegistry.com/methodology#marks ## Key facts | Fact | Value | | --- | --- | | Type | American restaurant | | Address | 43 Sutter St, San Francisco, CA 94104, USA | | Hours | Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun | | Phone | (415) 888-8811 | | Rating | 4.3 across 633 reviews on Google | | Quietest time | Friday | | Updated | September 9, 2026 | ## All the details Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from. | Group | Fact | Value | Mark | Evidence | | --- | --- | --- | --- | --- | | Location info | Address | 43 Sutter St, San Francisco, CA 94104, USA | Confirmed | Google Business Profile | | Location info | Description | Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space. | Confirmed | Google Business Profile | | Location info | Hours | Mon to Fri 11:30 AM to 9:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile | | Location info | Name | Per Diem - Financial District | Confirmed | Google Business Profile | | Location info | Phone | (415) 888-8811 | Confirmed | Google Business Profile | | Hours | Monday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile | | Hours | Tuesday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile | | Hours | Wednesday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile | | Hours | Thursday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile | | Hours | Friday | 11:30 AM to 9:00 PM | Confirmed | Google Business Profile | | Hours | Saturday | Closed | Confirmed | Google Business Profile | | Hours | Sunday | Closed | Confirmed | Google Business Profile | | Services | Service | Californian cuisine | AI guess | | | Services | Service | Dine-in service | AI guess | | | Services | Service | Italian cuisine | AI guess | | | Links | Instagram | https://instagram.com/perdiemsf | AI guess | Our record | | Links | Website | http://www.perdiemsf.com/ | Confirmed | Google Business Profile | ## Services and prices Add your services so AI can say what you offer ### Known for Share your review link so AI can say what you're known for ## The team Add your team so AI can name who works here ## Visiting Per Diem Address: 43 Sutter St, San Francisco, CA 94104, USA. Phone: (415) 888-8811. Hours: Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun. (Confirmed, Google Business Profile.) ### Location info from Google Business Profile From Google Business Profile: "Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space." ### When to go Quietest day: Friday. Busiest day: Tuesday. From the popular times on its Google listing. ### Parking and getting in Add your parking so AI can tell people where to park Add how to find your door so AI can walk people in ### Nearby | Place | Type | Distance | | --- | --- | --- | | Caffe Bianco | Cafe | 1 min walk | | Sutter St & Sansome St | Bus stop | 1 min walk | | Paris Baguette | Bakery | 1 min walk | | Market St & Sansome St | Bus station | 1 min walk | | Market St & 2nd St | Transit stop | 1 min walk | | SUR Cafe Mediterranean | Mediterranean restaurant | 1 min walk | ## Reputation 4.3 average across 633 reviews: Google 633. (Confirmed, read September 9, 2026.) While many enjoy the pan seared salmon and firecracker potatoes, inconsistent service and food quality lead to mixed reviews. (AI guess, from 633 reviews.) ### What people like - Pan seared salmon - Firecracker potato appetizer ### What people do not like - Long waits for food and service - Rude staff interactions - Mediocre food quality ### Press Add a press story so AI can say who's written about you ### Awards Add an award so AI can name it ### Directories Get listed in directories so AI can tell you're real ## Questions people ask ### is there a socials account worth following ### best american restaurant in San Francisco ### Worth the hype at Per Diem? ### Busiest day at Per Diem, anyone know? ### anything people actually moan about here? ### address for this place, anyone have it? ### lunch near Sutter, what is good ### walking in for a first visit, what happens ### opening hours here, what are they these days? ### On a budget in San Francisco, is Per Diem the one? ### What american restaurant questions is San Francisco asking AI most? ### do I need to book Per Diem in San Francisco or can I just turn up? ### prices round here, anyone got a number ### Per Diem, any chance to get a table this week? ### rough idea what Per Diem costs? ### torn between this place and Wayfare Tavern? ### the good stuff about Per Diem, what is it? ### Open Saturdays here? ## The AI Score: 25 of 100 It measures how likely AI engines are to recommend a business, and how accurately. San Francisco american restaurants run 24 to 62. Fair starts at 45, good at 65. Per Diem scores 25, below the San Francisco average of 32. The same method scores every business on the registry. | Signal | Weight | Score | What it measures | Per Diem | | --- | --- | --- | --- | --- | | Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor | | Off-property attestation | 20 | 39 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor | | AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Poor | | Reviews & response | 12 | 78 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good | | Backlink & citation authority | 8 | 57 | Domain authority and editorial quality of the sources that attest to you. | Fair | | Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good | | Speed & mobile | 7 | | Core Web Vitals at the 75th percentile, on a real phone. | | | Content freshness & schema | 5 | 77 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good | Full method: https://localairegistry.com/methodology How AI decides what to say about an american restaurant: https://localairegistry.com/methodology#how-ai-decides-local-business. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-local-business ## Entity map Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other. | Entity | Type | ID on this page | Same as | Relationship to Per Diem | | --- | --- | --- | --- | --- | | Per Diem | LocalBusiness | #business | http://www.perdiemsf.com/ | Subject of this page | | San Francisco, California | City | #city | | City Per Diem is in | | Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page | | Steve Lee | Person | #author | https://localairegistry.com/team/steve-lee | Author of this page | ## Topical map Where this page sits in the registry. It's one profile among the american restaurants in San Francisco, linked to the lists and towns around it. ### Lists - Best american restaurants in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco/american-restaurant - Best businesses in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco ### Nearby - /san-jose: https://localairegistry.com/leaderboards/ca/san-jose - /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles - /san-diego: https://localairegistry.com/leaderboards/ca/san-diego - /irvine: https://localairegistry.com/leaderboards/ca/irvine - /mountain-view: https://localairegistry.com/leaderboards/ca/mountain-view - /santa-clara: https://localairegistry.com/leaderboards/ca/santa-clara ### Every list - Every leaderboard in California: https://localairegistry.com/leaderboards/ca ## References ### Sources cited - [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJs-CCd2KAhYAR8Ru06zrZe6c (accessed Sep 9, 2026) - [2] AI engine output: ChatGPT, read by Local AI Registry on Sep 12, 2026; Gemini, read by Local AI Registry on Sep 9, 2026, https://localairegistry.com/methodology (accessed Sep 19, 2026)
The files every page on the registry shares, and how to copy this code for your own site, are here: https://localairegistry.com/developers
References, including locals
Every source behind this page, including every post and comment from locals. Each has its own permanent link, so AI engines can check it and anything copied from here carries its link back.
- is there a socials account worth following Question by undecided_on_sutter, Sep 14, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-has-per-diem-financial-district-been-posting-lately
- best american restaurant in San Francisco Question by no_rush_in_sf, Sep 11, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/best-american-restaurant-in-san-francisco
- Worth the hype at Per Diem? Question by sutter_otis, Sep 10, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-is-the-restaurant-known-for
- Busiest day at Per Diem, anyone know? Question by long_overdue_in_sf, Sep 9, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-is-the-quietest-day-to-book-at-per-diem-financial-district
- anything people actually moan about here? Question by quiet_on_sutter, Sep 4, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/the-reviews-look-glowing-what-are-the-real-complaints
- address for this place, anyone have it? Question by summer_lurker_downtown, Sep 4, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/where-is-the-restaurant-located
- lunch near Sutter, what is good Question by reading_reviews_in_sf, Sep 3, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-is-around-per-diem-financial-district-on-sutter
- walking in for a first visit, what happens Question by francisco_otis, Sep 3, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-should-i-know-before-a-first-visit-at-per-diem-financial-district
- opening hours here, what are they these days? Question by san_francisco_lou, Aug 26, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-are-the-restaurants-hours-of-operation
- On a budget in San Francisco, is Per Diem the one? Question by reunion_sitter_uptown, Aug 21, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/is-there-anywhere-cheaper-than-per-diem-financial-district-in-san
- What american restaurant questions is San Francisco asking AI most? Question by Per Diem, Aug 20, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-american-restaurant-questions-is-san-francisco-asking-ai-most
- do I need to book Per Diem in San Francisco or can I just turn up? Question by autumn_runner_east, Aug 14, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/does-the-restaurant-take-reservations
- prices round here, anyone got a number Question by hopeful_in_sf, Aug 13, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-does-an-american-restaurant-actually-cost-in-san-francisco
- Per Diem, any chance to get a table this week? Question by early_on_sutter_94104, Aug 7, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/does-per-diem-financial-district-ever-have-last-minute-openings
- rough idea what Per Diem costs? Question by birthday_reader_downtown, Aug 3, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-is-the-price-range-at-the-restaurant
- torn between this place and Wayfare Tavern? Question by san_francisco_rue, Jul 31, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/per-diem-financial-district-or-marlowe-for-lunch-and-happy-hour-in-the
- the good stuff about Per Diem, what is it? Question by weekend_only_on_sutter, Jul 27, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/what-do-people-actually-like-about-per-diem-financial-district
- Open Saturdays here? Question by winter_bride_west, Jul 24, 2026. localairegistry.com/biz/ca/san-francisco/per-diem-financial-district-san-francisco-ca/q/is-per-diem-financial-district-open-on-saturdays
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<main>
<article>
<header>
<p>Local AI Registry · American restaurants in San Francisco, CA · Editorial</p>
<h2>Per Diem, San Francisco CA: Reviews</h2>
<p>By Steve Lee, founder and CEO of Local AI Registry. Updated September 9, 2026.</p>
<p>Published September 9, 2026 · Updated September 9, 2026 · Machine-readable version below</p>
</header>
<section id="ai-in-short">
<h3>In short</h3>
<p>Per Diem is an american restaurant in San Francisco, CA. Its AI Score is 25 of 100, which is poor.</p>
<p>What each mark on this page means: https://localairegistry.com/methodology#marks</p>
</section>
<section id="ai-key-facts">
<h3>Key facts</h3>
<table>
<thead><tr><th scope="col">Fact</th><th scope="col">Value</th></tr></thead>
<tbody>
<tr><td>Type</td><td>American restaurant</td></tr>
<tr><td>Address</td><td>43 Sutter St, San Francisco, CA 94104, USA</td></tr>
<tr><td>Hours</td><td>Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun</td></tr>
<tr><td>Phone</td><td>(415) 888-8811</td></tr>
<tr><td>Rating</td><td>4.3 across 633 reviews on Google</td></tr>
<tr><td>Quietest time</td><td>Friday</td></tr>
<tr><td>Updated</td><td>September 9, 2026</td></tr>
</tbody>
</table>
</section>
<section id="ai-all-the-details">
<h3>All the details</h3>
<p>Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.</p>
<table>
<thead><tr><th scope="col">Group</th><th scope="col">Fact</th><th scope="col">Value</th><th scope="col">Mark</th><th scope="col">Evidence</th></tr></thead>
<tbody>
<tr><td>Location info</td><td>Address</td><td>43 Sutter St, San Francisco, CA 94104, USA</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Location info</td><td>Description</td><td>Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space.</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Location info</td><td>Hours</td><td>Mon to Fri 11:30 AM to 9:00 PM · Sat to Sun Closed</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Location info</td><td>Name</td><td>Per Diem - Financial District</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Location info</td><td>Phone</td><td>(415) 888-8811</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Monday</td><td>11:30 AM to 9:00 PM</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Tuesday</td><td>11:30 AM to 9:00 PM</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Wednesday</td><td>11:30 AM to 9:00 PM</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Thursday</td><td>11:30 AM to 9:00 PM</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Friday</td><td>11:30 AM to 9:00 PM</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Saturday</td><td>Closed</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Hours</td><td>Sunday</td><td>Closed</td><td>Confirmed</td><td>Google Business Profile</td></tr>
<tr><td>Services</td><td>Service</td><td>Californian cuisine</td><td>AI guess</td><td></td></tr>
<tr><td>Services</td><td>Service</td><td>Dine-in service</td><td>AI guess</td><td></td></tr>
<tr><td>Services</td><td>Service</td><td>Italian cuisine</td><td>AI guess</td><td></td></tr>
<tr><td>Links</td><td>Instagram</td><td>https://instagram.com/perdiemsf</td><td>AI guess</td><td>Our record</td></tr>
<tr><td>Links</td><td>Website</td><td>http://www.perdiemsf.com/</td><td>Confirmed</td><td>Google Business Profile</td></tr>
</tbody>
</table>
</section>
<section id="ai-services-and-prices">
<h3>Services and prices</h3>
<h4>Known for</h4>
</section>
<section id="ai-the-team">
<h3>The team</h3>
</section>
<section id="ai-visiting-per-diem">
<h3>Visiting Per Diem</h3>
<p>Address: 43 Sutter St, San Francisco, CA 94104, USA. Phone: (415) 888-8811. Hours: Mon to Fri 11:30 AM to 9 PM · Closed Sat to Sun. (Confirmed, Google Business Profile.)</p>
<h4>Location info from Google Business Profile</h4>
<p>From Google Business Profile: "Modern Californian-Italian flavors meet decor recalling the Gold Rush era in a cozy 2-story space."</p>
<h4>When to go</h4>
<p>Quietest day: Friday. Busiest day: Tuesday. From the popular times on its Google listing.</p>
<h4>Parking and getting in</h4>
<h4>Nearby</h4>
<table>
<thead><tr><th scope="col">Place</th><th scope="col">Type</th><th scope="col">Distance</th></tr></thead>
<tbody>
<tr><td>Caffe Bianco</td><td>Cafe</td><td>1 min walk</td></tr>
<tr><td>Sutter St & Sansome St</td><td>Bus stop</td><td>1 min walk</td></tr>
<tr><td>Paris Baguette</td><td>Bakery</td><td>1 min walk</td></tr>
<tr><td>Market St & Sansome St</td><td>Bus station</td><td>1 min walk</td></tr>
<tr><td>Market St & 2nd St</td><td>Transit stop</td><td>1 min walk</td></tr>
<tr><td>SUR Cafe Mediterranean</td><td>Mediterranean restaurant</td><td>1 min walk</td></tr>
</tbody>
</table>
</section>
<section id="ai-reputation">
<h3>Reputation</h3>
<p>4.3 average across 633 reviews: Google 633. (Confirmed, read September 9, 2026.)</p>
<p>While many enjoy the pan seared salmon and firecracker potatoes, inconsistent service and food quality lead to mixed reviews. (AI guess, from 633 reviews.)</p>
<h4>What people like</h4>
<ul>
<li>Pan seared salmon</li>
<li>Firecracker potato appetizer</li>
</ul>
<h4>What people do not like</h4>
<ul>
<li>Long waits for food and service</li>
<li>Rude staff interactions</li>
<li>Mediocre food quality</li>
</ul>
<h4>Press</h4>
<h4>Awards</h4>
<h4>Directories</h4>
</section>
<section id="ai-questions-people-ask">
<h3>Questions people ask</h3>
<h4>is there a socials account worth following</h4>
<h4>best american restaurant in San Francisco</h4>
<h4>Worth the hype at Per Diem?</h4>
<h4>Busiest day at Per Diem, anyone know?</h4>
<h4>anything people actually moan about here?</h4>
<h4>address for this place, anyone have it?</h4>
<h4>lunch near Sutter, what is good</h4>
<h4>walking in for a first visit, what happens</h4>
<h4>opening hours here, what are they these days?</h4>
<h4>On a budget in San Francisco, is Per Diem the one?</h4>
<h4>What american restaurant questions is San Francisco asking AI most?</h4>
<h4>do I need to book Per Diem in San Francisco or can I just turn up?</h4>
<h4>prices round here, anyone got a number</h4>
<h4>Per Diem, any chance to get a table this week?</h4>
<h4>rough idea what Per Diem costs?</h4>
<h4>torn between this place and Wayfare Tavern?</h4>
<h4>the good stuff about Per Diem, what is it?</h4>
<h4>Open Saturdays here?</h4>
</section>
<section id="ai-score">
<h3>The AI Score: 25 of 100</h3>
<p>It measures how likely AI engines are to recommend a business, and how accurately. San Francisco american restaurants run 24 to 62. Fair starts at 45, good at 65. Per Diem scores 25, below the San Francisco average of 32. The same method scores every business on the registry.</p>
<table>
<thead><tr><th scope="col">Signal</th><th scope="col">Weight</th><th scope="col">Score</th><th scope="col">What it measures</th><th scope="col">Per Diem</th></tr></thead>
<tbody>
<tr><td>Retrieval grounding</td><td>26</td><td>0</td><td>Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on.</td><td>Poor</td></tr>
<tr><td>Off-property attestation</td><td>20</td><td>39</td><td>Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability.</td><td>Poor</td></tr>
<tr><td>AI visibility</td><td>14</td><td>0</td><td>Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service.</td><td>Poor</td></tr>
<tr><td>Reviews & response</td><td>12</td><td>78</td><td>The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim.</td><td>Good</td></tr>
<tr><td>Backlink & citation authority</td><td>8</td><td>57</td><td>Domain authority and editorial quality of the sources that attest to you.</td><td>Fair</td></tr>
<tr><td>Google Business Profile</td><td>8</td><td>90</td><td>Required and recommended fields; update cadence. The listing AI pulls from first.</td><td>Good</td></tr>
<tr><td>Speed & mobile</td><td>7</td><td></td><td>Core Web Vitals at the 75th percentile, on a real phone.</td><td></td></tr>
<tr><td>Content freshness & schema</td><td>5</td><td>77</td><td>Crawl recency, intent alignment, valid JSON-LD, canonicals.</td><td>Good</td></tr>
</tbody>
</table>
<p>Full method: https://localairegistry.com/methodology</p>
<p>How AI decides what to say about an american restaurant: https://localairegistry.com/methodology#how-ai-decides-local-business. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-local-business</p>
</section>
<section id="ai-entity-map">
<h3>Entity map</h3>
<p>Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.</p>
<table>
<thead><tr><th scope="col">Entity</th><th scope="col">Type</th><th scope="col">ID on this page</th><th scope="col">Same as</th><th scope="col">Relationship to Per Diem</th></tr></thead>
<tbody>
<tr><td>Per Diem</td><td>LocalBusiness</td><td>#business</td><td>http://www.perdiemsf.com/</td><td>Subject of this page</td></tr>
<tr><td>San Francisco, California</td><td>City</td><td>#city</td><td></td><td>City Per Diem is in</td></tr>
<tr><td>Local AI Registry</td><td>Organization</td><td>#publisher</td><td>https://localairegistry.com</td><td>Publisher of this page</td></tr>
<tr><td>Steve Lee</td><td>Person</td><td>#author</td><td>https://localairegistry.com/team/steve-lee</td><td>Author of this page</td></tr>
</tbody>
</table>
</section>
<section id="ai-topical-map">
<h3>Topical map</h3>
<p>Where this page sits in the registry. It's one profile among the american restaurants in San Francisco, linked to the lists and towns around it.</p>
<h4>Lists</h4>
<ul>
<li>Best american restaurants in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco/american-restaurant</li>
<li>Best businesses in San Francisco: https://localairegistry.com/leaderboards/ca/san-francisco</li>
</ul>
<h4>Nearby</h4>
<ul>
<li>/san-jose: https://localairegistry.com/leaderboards/ca/san-jose</li>
<li>/los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles</li>
<li>/san-diego: https://localairegistry.com/leaderboards/ca/san-diego</li>
<li>/irvine: https://localairegistry.com/leaderboards/ca/irvine</li>
<li>/mountain-view: https://localairegistry.com/leaderboards/ca/mountain-view</li>
<li>/santa-clara: https://localairegistry.com/leaderboards/ca/santa-clara</li>
</ul>
<h4>Every list</h4>
<ul>
<li>Every leaderboard in California: https://localairegistry.com/leaderboards/ca</li>
</ul>
</section>
<section id="ai-references">
<h3>References</h3>
<h4>Sources cited</h4>
<ul>
<li>[1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJs-CCd2KAhYAR8Ru06zrZe6c (accessed Sep 9, 2026)</li>
<li>[2] AI engine output: ChatGPT, read by Local AI Registry on Sep 12, 2026; Gemini, read by Local AI Registry on Sep 9, 2026, https://localairegistry.com/methodology (accessed Sep 19, 2026)</li>
</ul>
</section>
</article>
</main>
</body>
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References
Change historyConfirmedVisitor submittedAI guessShow references (2)
This is the evidence for every fact on this page, across Locals, Services, Team, Visit, Reputation and Updates. Each reference names the fact, the source, what kind of source it is, and the date it was checked, with a link and an archived copy so anyone can verify it. Visitor references are dated firsthand accounts. AI guesses record what an AI engine said on that date, not what is true.
- [1]VisitName, address, phone, hours and 2 other detailsGoogle Business Profile.Primary source · Accessed Sep 9, 2026 · https://www.google.com/maps/place/?q=place_id:ChIJs-CCd2KAhYAR8Ru06zrZe6c
- [2]ServicesCalifornian cuisine, Dine-in service and Italian cuisineAI engine output: ChatGPT, read by Local AI Registry on Sep 12, 2026; Gemini, read by Local AI Registry on Sep 9, 2026.AI engine output · Accessed Sep 19, 2026 · https://localairegistry.com/methodology