Weights & Biases
★ 4.7The MLOps platform for tracking, visualizing, and optimizing ML experiments and model training.
small, mediumfree
Langfuse
★ 4.7Open-source LLM engineering platform — trace, evaluate, and debug your AI application in production.
small, mediumfree
Helicone
★ 4.7LLM observability proxy — one line of code to monitor costs, latency, and quality across all AI calls.
small, mediumfree