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LangSmith

LangChain's platform for debugging and evaluating LLM apps

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Looking for a tool like LangSmith (LangChain's platform for debugging and evaluating LLM apps)? Below are 15 AI tools people use as an alternative to LangSmith, ranked by leaderboard position. Each one is approved by our editors and worth comparing before you decide.

Cursor
Cursor

AI-first code editor, forked from VS Code

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OpenRouter
OpenRouter

One API endpoint for 300+ AI models from every provider

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Amazon Bedrock
Amazon Bedrock

One API for Claude, Llama, Titan, and more on AWS

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Azure OpenAI Service
Azure OpenAI Service

Enterprise access to OpenAI models via Microsoft Azure

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Pinecone
Pinecone

The most widely used managed vector database

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Traceloop
Traceloop

Observability for LLM apps built on OpenTelemetry

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HoneyHive
HoneyHive

Observability and evaluation for AI agents

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Maxim AI
Maxim AI

Simulation and evaluation platform for AI agents

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Opik
Opik

Comet's open-source LLM tracing and evaluation suite

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Arize Phoenix
Arize Phoenix

Open-source tracing and evaluation for LLM apps

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