MLflow alternatives
6 evaluation tools in the same lane as MLflow, ranked by editorial score.
TR
TruLens
Evaluation · Multi-model (LLM-as-judge)
8.1
Open-source evaluation and tracing framework for LLM apps and agents, built on OpenTelemetry.
Free· Free, open source (Apache-licensed Python package)llm-evaluationrag-evaluation
OP
Opik
Evaluation · Multi-model
7.3
Open-source LLM observability and evaluation platform for debugging and monitoring AI agents in production.
Freemium· Free open-source self-host; free Cloud tier (no card); Enterprise contact salesllm-tracingagent-evaluation
AG
Agenta
Evaluation · Multi-model
6.9
Open-source LLMOps platform for prompt engineering, evaluation, and observability in one workspace.
Freemium· Hobby: $0 forever · Pro: $29 /month · Business: $299 /month · Enterprise: Custom · Open source: Free foreverprompt-engineeringllm-evaluation
PH
Phoenix
Evaluation · Multi-model
7.0
Open-source LLM and agent observability platform with tracing, evals, and experimentation built on OpenTelemetry.
Freemium· AX Free: Free · AX Pro: $50 · AX Enterprise: Customllm-tracingagent-debugging
LA
Langfuse
Evaluation · Model-agnostic
7.3
Open-source LLM observability, prompt management, and evaluation in one platform.
Freemium· Free self-host & Hobby tier; Core $29/mo, Pro $199/mo, Enterprise $2,499/mollm-observabilityprompt-management
MA
Maxim AI
Evaluation · Multi-model
7.1
End-to-end evaluation, simulation, and observability platform for shipping production-grade AI agents.
Freemium· Developer: Free · Professional: $29 /seat /month · Business: $49 /seat /month · Enterprise: Customagent-evaluationllm-observability