OpenAI Evals alternatives
6 evaluation tools in the same lane as OpenAI Evals, ranked by editorial score.
IA
Inspect AI
Evaluation · Multi-model
7.2
Open-source LLM evaluation framework from the UK AI Security Institute with 200+ built-in benchmarks.
Free· Free and open source (MIT-style license); you pay only for underlying model API usage.llm-benchmarkingagent-evaluation
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
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
LS
LLM Stats
Evaluation · Multi-model
7.9
Live leaderboard and side-by-side comparison hub for 300+ frontier LLMs across reasoning, coding, and multimodal benchmarks.
Free· Free to browse; underlying model usage billed by each providermodel-comparisonbenchmark-tracking
AA
Athina AI
Evaluation · Multi-model
8.1
Collaborative LLM evaluation and observability platform for teams shipping AI features to production.
Freemium· Starter free (10k logs/mo); Pro & Enterprise customllm-evaluationprompt-management
LA
LangFast
Evaluation · Multi-model
7.0
No-signup LLM playground for testing, comparing, and versioning prompts against your own API keys.
Paid· One-time lifetime ~$60-$120; 14-day money-backprompt-testingprompt-versioning