Alternatives

Alternatives to LangSmith

7 LLM Evals & Observability rivals, ranked by the same evidence-graded leaderboard — LangSmith itself ranks #7 with a PA Score of 23/100. Every “beats LangSmith on” below comes from a judged head-to-head round with cited evidence — see the methodology.

#1
Braintrust
Braintrust Data, Inc.
PA Score 38/100vs LangSmith →
coverage
43.8/100
Beats LangSmith on: Use an official CLI · Connect an agent via an official MCP server
#2
Cekura
Cekura
PA Score 36/100vs LangSmith →
coverage
31.7/100
Beats LangSmith on: Download a machine-readable API spec (OpenAPI or equivalent) · Connect an agent via an official MCP server
#3
W&B Weave
Weights & Biases (CoreWeave)
PA Score 35/100vs LangSmith →
coverage
41.8/100
Beats LangSmith on: Download a machine-readable API spec (OpenAPI or equivalent) · Connect an agent via an official MCP server
#4
Helicone
Helicone, Inc.
PA Score 34/100vs LangSmith →
coverage
32.4/100
Beats LangSmith on: Download a machine-readable API spec (OpenAPI or equivalent) · Version prompts and deploy changes to production without shipping code
#5
Langfuse
Langfuse GmbH
PA Score 34/100vs LangSmith →
coverage
49.4/100
Beats LangSmith on: Version prompts and deploy changes to production without shipping code · Self-host the core product
#6
Arize Phoenix
Arize AI, Inc.
PA Score 32/100vs LangSmith →
coverage
43.5/100
Beats LangSmith on: Connect an agent via an official MCP server · Version prompts and deploy changes to production without shipping code
#8
Galileo
Galileo
PA Score 19/100vs LangSmith →
coverage
24.8/100
Beats LangSmith on: Connect an agent via an official MCP server · Trace multi-step agent runs as nested spans grouped into sessions or threads

Full leaderboard: LLM Evals & Observability arena →