Langfuse alternatives

The 12 products closest to Langfuse in what they do and who they're for, best match first.

Langfa.st — Compare model responses side-by-side to validate prompts before deployment. (Code, Free)
LangChain4j — Integrates LLMs and vector stores directly into Java applications. (Code, Free)
LiteLLM — One OpenAI-format API for 100+ LLM providers (Code, Free)
LangSmith — Step-by-step traces and evals that show what an agent actually did (Code, Freemium)
LangChain — Compose exactly the agent your use case needs from model, tools, prompt, and middleware. (Code, Free)
LangWatch — Runs simulations and continuous evaluations to make AI agents reliable. (Code, Freemium)
llm-d — Deploys production-grade LLM serving on existing hardware clusters. (Code, Free)
WebLLM — Runs high-performance language models directly inside web browsers. (Code, Free)
Langroid — Simplifies multi-agent orchestration and app development with intuitive abstractions. (Code, Free)
OptiLLM — Increases LLM reasoning accuracy by up to 10x without model training. (Code, Free)
OpenLIT — It enables comprehensive monitoring, evaluation, and management of AI agents via OpenTelemetry. (Code, Free)
llmware — Build private, local RAG pipelines with 300+ prepackaged models and integrated document parsing. (Code, Free)