Who uses Comet Opik?
Open-source LLM observability and evaluation (Opik) plus ML experiment tracking and model registry. comet.com
17
companies use Comet Opik
17 companies use Comet Opik. 12% are in Artificial Intelligence. Confirmed or observed customers include Netflix, Uber, and Stellantis. 13 of them are confirmed by a published case study, quote or press release.Latest check Oct 7, 2026: 17 of 17 companies checked, from 12 public sources.
- Category
- LLM Ops & Frameworks
- Customers by proof
- 13 confirmed, 4 observed
- Top industry
- Artificial Intelligence, 12% of customers
- Security
- ISO 27001, SOC 2 Type IISource: trust.comet.com, checked Oct 7, 2026
- Pricing
- Open Source: $0; Free Cloud: $0; Pro Cloud: $19 Per month; Enterprise: contact salesSource: comet.com, checked Oct 7, 2026
- Most similar
- LangSmith, 2 shared customers
- Website
- comet.com
What Comet Opik does
Comet offers Opik, an open-source platform to trace, evaluate and monitor LLM applications and agents, with test suites and 40+ LLM-as-a-judge metrics. Its experiment management product tracks ML training runs, datasets and models in a registry. Customers shown on its site include Uber, Netflix, NatWest, Stellantis and Autodesk.
Written by usedby from comet.com.
Main features
Common uses
Works with
17 companies use Comet Opik
Every company below links to the public page that shows it uses Comet Opik. Open a row to see the dated capture.
Customers over time: appears once we have six months of archived captures.
| Company | Industry | Proof |
|---|---|---|
 Netflix | Streaming & Content | |
 Uber | Mobility & Ride-hailing | |
 Stellantis | Automotive Manufacturing | |
 Etsy | Marketplace | |
 NTT Data | IT Services & System Integration | |
 Autodesk | DevTools & Infrastructure | |
 Ancestry | — | |
| Artificial Intelligence | ||
 CareRev | — | |
 NatWest | Banking & Mortgages |
Is Comet Opik right for your company?
See what companies in your industry use, from the companies we track. Pick your industry.
Of the 117 Artificial Intelligence companies on usedby, 2 are listed as Comet Opik customers. 13 use only another LLM Ops & Frameworks tool.
- Comet Opik only, 2%
- Comet Opik and another tool in LLM Ops & Frameworks, 0%
- Another tool in LLM Ops & Frameworks only, 11%
- No LLM Ops & Frameworks tool we can see, 87%
These are companies usedby tracks because a public page names them, often Comet Opik's own customer page. It is not a market share. A company counts once, whatever the number of tools it uses.
What customers report
Results as published by Comet Opik and its customers. Each one links to its dated source. We quote, we do not score.
Read the story
NatWestVendor case studyCaptured Oct 7, 2026Read the story
CareRevVendor case studyCaptured Oct 7, 2026Read the story
AssemblyAIVendor case studyCaptured Oct 7, 2026Read the story
UberVendor case studyCaptured Oct 7, 2026
Read the story
ZencoderVendor case studyCaptured Oct 7, 2026Comet played a huge role in us being able to be successful.The real selling point of Comet was how it could easily integrate with our training code, easily track everything that we needed, and have a good UI to show it when comparing experimentsBefore you buy Comet Opik
What Comet Opik publishes on the points buyers check first, each with its source and check date.
| Security | ISO 27001, SOC 2 Type II | trust.comet.com, checked Oct 7, 2026 |
|---|---|---|
| Free trial | Free trial or free plan available. | comet.com, checked Oct 7, 2026 |
| Integrations | BeeAI, LangChain, Mastra, Vercel AI SDK, OpenAI, Gemini, CrewAI, DSPy, Anthropic, LiteLLM, Ragas | comet.com, checked Oct 7, 2026 |
| Pricing | Open Source: $0; Free Cloud: $0; Pro Cloud: $19 Per month; Enterprise: contact sales | comet.com, checked Oct 7, 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 Comet Opik work with the tools we already use?
Comet Opik alternatives
Tools compared with Comet Opik most often, with the customers they share.
| Tool | Customers | Shared with Comet Opik | Compare |
|---|---|---|---|
 LangSmith43 customers, 2 shared | 43 | 2 | Comet Opik vs LangSmith |
 Arize AI35 customers, 1 shared | 35 | 1 | Comet Opik vs Arize AI |
 Braintrust39 customers, 0 shared | 39 | 0 | Comet Opik vs Braintrust |
 Langchain32 customers, 1 shared | 32 | 1 | Comet Opik vs Langchain |
Questions about Comet Opik
Who uses Comet Opik?
17 companies use Comet Opik, including Netflix, Uber, and Stellantis.
Which industries use Comet Opik?
The industries with the most Comet Opik customers are Artificial Intelligence (2), Automotive Manufacturing (1), and Banking & Mortgages (1).
What are the alternatives to Comet Opik?
The tools compared with Comet Opik most often are LangSmith (43 customers, 2 shared), Arize AI (35 customers, 1 shared), Braintrust (39 customers, 0 shared), and Langchain (32 customers, 1 shared). See all Comet Opik alternatives.
How does usedby know who uses Comet Opik?
Each company is linked to a public page that names it: Comet Opik'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 (13): a case study, a named quote or a press release. Observed (4): Comet Opik shows the company on its own pages, for example a logo wall. Signal (0): a job post shows the company’s employees use Comet Opik, 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 7, 2026, and 17 of 17 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 Comet Opik started on October 7, 2026. New customers appear after two complete checks of its pages.