Opik
Opik is an open-source LLM evaluation and tracing platform by Comet. Log traces, evaluate outputs, build test datasets, and monitor your LLM applications in production. Integrates with LangChain, LlamaIndex, and all major frameworks.
- Location
- New York, USA
- Raised
- $55M
- Stage
- Series B
- Founded
- 2024
- Category
- Open Source
- Funding
- VC-backed
- Team
- 100-250
Funding figures as of Jul 2025 · not independently verified
Founders of Opik
- Gideon Mendels
- Douglas Blank
Investors backing Opik
- Tiger Global
- Scale Venture Partners
Frequently asked questions
What does Opik do?
Opik is an open-source LLM evaluation and tracing platform by Comet. Log traces, evaluate outputs, build test datasets, and monitor your LLM applications in production. Integrates with LangChain, LlamaIndex, and all major frameworks.
Where is Opik based?
Opik is based in New York, USA.
When was Opik founded?
Opik was founded in 2024.
How much has Opik raised?
Opik has raised $55M in their Series B round as of Jul 2025.
Who founded Opik?
Opik was founded by Gideon Mendels, Douglas Blank.
Who has invested in Opik?
Opik is backed by Tiger Global, Scale Venture Partners.
How Opik would pitch themselves
○ Auto-generated01Target customer
Developers + open-source communities + enterprises wanting an OSS-first tool in this category, with optional commercial support.
02Problem they solve
Opik is an open-source LLM evaluation and tracing platform by Comet. Log traces, evaluate outputs, build test datasets, and monitor your LLM applications in production. Integrates with LangChain, LlamaIndex, and all maj… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Opik differentiates on open source llm evaluation and tracing. Backed by Tiger Global + Scale Venture Partners, $55M raised — the company has resources + validation to compound this thesis. Founded by Gideon Mendels + team.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.