Why this fit
Teams evaluating AI models, assistants and generative workflows, particularly RAG and vector search, teams avoiding vendor lock-in — free to start, source available on GitHub.
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Catalogue record
github.com
OpenEvals
Open-source evaluation library for LLM and agent applications. Built by LangChain with pre-built evaluators for common use cases including R...
Checked Oct 27, 2026Evidence completeness: evidenceREADME refreshed Oct 16, 2026
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Open-source evaluation library for LLM and agent applications. Built by LangChain with pre-built evaluators for common use cases including RAG, agents, and structured output validation. MIT licensed.
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Teams evaluating AI models, assistants and generative workflows, particularly RAG and vector search, teams avoiding vendor lock-in — free to start, source available on GitHub.
Known limitations
Teams that need a vendor SLA before adopting a free tool — check the project's support terms first.
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Evidence summary
Known limitations
Teams that need a vendor SLA before adopting a free tool — check the project's support terms first.
Catalogue confidence
Catalogue data checked Oct 27, 2026.
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Repository context
⚖️ OpenEvals
GitHub / langchain-ai/openevals
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