Top alternatives to LangSmith

LangSmith is a product in AI Infra & Developer Tools. Here are the strongest alternatives, ranked by an explainable 4-dimension score.

● Data-backed · 503 nodes · updated 2026-06-29
#AlternativeOverallPop.Mom.Cred.Eco.
1Patronus AI · Eval
An evaluation and testing platform that automatically scores, monitors and stress-tests AI systems and agents.
7874907470
2Humanloop · Eval
An LLM development platform for managing prompts, evaluations and monitoring of AI applications.
5740636960
3Braintrust · Eval
An end-to-end platform for evaluating, testing and iterating on LLM applications in development and production.
7048907470
4Galileo · Eval
An evaluation and observability platform for measuring and improving the reliability of generative AI apps.
6845847570
5Lakera · Eval
An AI security company protecting LLM applications from prompt injection and other GenAI threats.
6847847570
6Guardrails AI · Eval
An open-source framework for adding validation, safety checks and structured-output guardrails to LLMs.
6664726860
7Etched · Inference
A startup building Sohu, a transformer-only ASIC aimed at far faster, cheaper LLM inference than GPUs.
7774877470
8Predibase · MLOps
A platform for fine-tuning and serving small, specialized open-source language models efficiently.
7674847570
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