# 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

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtugghob05r3yeawezirxe20%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtugghob05r3yeawezirxe20%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtugghob05r3yeawezirxe20%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtugghob05r3yeawezirxe20%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtugghob05r3yeawezirxe20%2F4.jpg)


## 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

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## The team

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## 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

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### Directories

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## 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)