
Langfuse
Observability and evaluation for LLM applications and AI agents.










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Observability and evaluation for LLM applications and AI agents.
Simulation-based AI agent testing & LLMOps for production-grade AI.
Real-time token and cost tracker for OpenAI, Claude, and Gemini APIs.

The open arena for evaluating and ranking generative AI models

Benchmark and compare local LLMs in one command, with shareable results.

2-command QA generation & RAG evaluation with detailed diagnostics.