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Best Alternatives to Braintrust
3 options ranked by Trust Score · April 2026
About Braintrust
AI evaluation and observability platform focused on running structured evals, scoring LLM outputs, and prompt iteration workflows.
TypeScriptPythonEvalsPaid
Top Braintrust Alternatives
Langfuse
Trust Score 85 · Good
85
Open-source LLM observability platform for tracing, evaluating, and debugging AI applications — self-host or use the cloud.
TypeScriptPythonOpen Source
Free tierView profile
LangSmith
Trust Score 80 · Good
80
LangChain's observability and evaluation platform — trace, debug, and evaluate LLM applications with deep LangChain ecosystem integration.
TypeScriptPythonLangChain
Free tierView profile
Helicone
Trust Score 73 · Fair
73
Lightweight LLM observability via a proxy URL swap — get cost tracking, request logging, and caching with a one-line integration.
TypeScriptOpen SourceProxy
Free tierView profile
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Trust Scores are calculated weekly from real-world signals — npm/PyPI downloads, GitHub commits, stars, and Stack Overflow activity. Higher is more actively maintained and widely adopted.
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