MLflow (Tracing & GenAI)
The MLOps standard's GenAI extension: trace logging, LLM evaluation and prompt registry inside open-source MLflow 3.
| Category | Observability & Tracing |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | free |
| Pricing notes | Apache-2.0, free; managed versions via Databricks |
| Framework integrations | openai-sdk, langchain, llamaindex, dspy, anthropic, opentelemetry |
| Funding / ownership | Linux Foundation project, primarily backed by Databricks |
Pricing/feature source: https://mlflow.org/docs/latest/llms/tracing/index.html