Great Expectations alternatives
6 evaluation tools in the same lane as Great Expectations, ranked by editorial score.
PR
Promptfoo
Evaluation · Multi-model
7.2
Open-source eval and red-teaming framework for LLM apps, prompts, and RAG pipelines.
Freemium· Community: Free · Enterprise: Custom · On-Premise: Customllm-evalsred-teaming
OE
OpenAI Evals
Evaluation · OpenAI GPT models (extensible)
8.1
OpenAI's open-source framework for benchmarking LLMs against a shared registry of evaluations.
Free· Free (MIT); you pay OpenAI API costs for eval runsllm-benchmarkingregression-testing
ML
MLflow
Evaluation · Multi-model
8.1
Open-source platform for tracking, evaluating, and deploying ML models and LLM applications.
Free· Free and open source (Apache 2.0); managed offering via Databricksllm-evaluationexperiment-tracking
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
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