Who uses Patronus AI?
Simulation environments, digital world models and evaluation tools to train and test AI agents. patronus.ai
7
companies use Patronus AI
7 companies use Patronus AI. 14% are in Marketplace. Confirmed or observed customers include Etsy, Algomo, and Emergence AI. 7 of them are confirmed by a published case study, quote or press release.Latest check Oct 6, 2026: 7 of 7 companies checked, from 5 public sources.
- Category
- ML Ops & Training
- Customers by proof
- 7 confirmed, 0 observed
- Top industry
- Marketplace, 14% of customers
- Most similar
- Weights & Biases, no shared customer yet
- Website
- patronus.ai
What Patronus AI does
Patronus AI builds Digital World Models that simulate agent actions in digital workflows, used to generate RL environments that frontier models train on across software, customer service, finance and research tasks. It also offers an evaluation platform with experiments, logs, traces and evaluator APIs, the Percival agent debugger and research models such as the Lynx hallucination detector. It serves model labs and teams building AI agents.
Written by usedby from patronus.ai.
Main features
Common uses
Works with
7 companies use Patronus AI
Every company below links to the public page that shows it uses Patronus AI. Open a row to see the dated capture.
Customers over time: appears once we have six months of archived captures.
| Company | Industry | Proof |
|---|---|---|
 Etsy | Marketplace | |
 Algomo | — | |
 Emergence AI | — | |
 Exa | — | |
 Gamma | — | |
 Hospitable | — | |
 Weaviate | — |
What customers report
Results as published by Patronus AI and its customers. Each one links to its dated source. We quote, we do not score.
1K+ hourssaved on manual evaluation per month through
GammaVendor case studyCaptured Oct 6, 2026Read the story
EtsyVendor case studyCaptured Oct 6, 2026Read the story
WeaviateVendor case studyCaptured Oct 6, 2026Read the story
Emergence AIVendor case studyCaptured Oct 6, 2026Patronus helped our AI team find signals and patterns of error in our datasets. Their LLM Judges enabled us to triage errors and optimize our AI outputs in production settings. Patronus up-leveled our evaluation process and was an invaluable part of our workflow.It is an extremely helpful and interesting tool for building Agent systems. I think the best compliment that I can give as a developer is that this really made me feel empowered to test out a new idea.Before you buy Patronus AI
What Patronus AI publishes on the points buyers check first, each with its source and check date.
| Your data | Not used to train models by default. | patronus.ai, checked Oct 8, 2026 |
|---|
Questions to ask in your demo
- Which of your customers look like us, by industry and size?
- What does a pilot cost, and what decides the move to a full contract?
- Where is our data stored, who can access it, and is it used to train models?
- How does Patronus AI work with the tools we already use?
Patronus AI alternatives
Tools compared with Patronus AI most often, with the customers they share.
| Tool | Customers | Shared with Patronus AI | Compare |
|---|---|---|---|
 Weights & Biases55 customers, 0 shared | 55 | 0 | Patronus AI vs Weights & Biases |
 H2O.ai42 customers, 0 shared | 42 | 0 | Patronus AI vs H2O.ai |
Questions about Patronus AI
Who uses Patronus AI?
7 companies use Patronus AI, including Etsy, Algomo, and Emergence AI.
Which industries use Patronus AI?
The industries with the most Patronus AI customers are Marketplace (1).
What are the alternatives to Patronus AI?
The tools compared with Patronus AI most often are Weights & Biases (55 customers, 0 shared) and H2O.ai (42 customers, 0 shared). See all Patronus AI alternatives.
How does usedby know who uses Patronus AI?
Each company is linked to a public page that names it: Patronus AI's customer page, a published case study, a press release or a job post. We save each page with a dated capture and check it again on each run. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
What do confirmed, observed and signal mean?
Confirmed (7): a case study, a named quote or a press release. Observed (0): Patronus AI shows the company on its own pages, for example a logo wall. Signal (0): a job post shows the company’s employees use Patronus AI, the weakest proof. Every level counts as a customer, and each line shows its level.
How current is this list?
The most recent check was on October 6, 2026, and 7 of 7 companies on this list have been checked so far. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
Changes and sources
New customers
No new customer yet. Tracking of Patronus AI started on October 6, 2026. New customers appear after two complete checks of its pages.