📖 The AI Tool Bible

SEAL Leaderboard alternatives

12 evaluation tools in the same lane as SEAL Leaderboard, ranked by editorial score.

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Braintrust

Featured
Evaluation · Platform (any LLM)
8.9

Eval, monitor, and improve AI products end-to-end.

Freemium· Free up to 1k events/day; team from $249/moevalsmonitoring

LangSmith

Evaluation · Platform (any LLM)
8.7

LangChain's eval + observability platform.

Freemium· Free starter; Plus $39/mo per seatLLM tracingevals

Weights & Biases

Evaluation · Platform (any LLM)
8.4

The ML experiment tracker, now with LLM eval features.

Freemium· Free personal; team from $50/mo per seatML experimentsLLM eval

Helicone

Evaluation · Platform (any LLM)
8.3

Open-source LLM observability — one-line proxy install.

Freemium· Free 100k req/mo; Pro from $25/moobservabilitycost tracking

Humanloop

Evaluation · Platform (any LLM)
8.2

Prompt management + evals for collaborative AI teams.

Paid· From $200/mo teamprompt managementteam collab

PromptLayer

Evaluation · Platform (any LLM)
7.9

Lightweight prompt logging + management for OpenAI/Claude apps.

Freemium· Free; Pro from $50/moprompt loggingversioning

Patronus

Evaluation · Platform (any LLM)
7.8

Automated LLM evaluation for hallucinations, safety, and quality.

Paid· Enterprise / contact saleshallucination detectionsafety

Agenta

Evaluation · Multi-model

Open-source LLMOps platform for prompt engineering, evaluation, and observability in one workspace.

Freemium· Open-source self-host free; managed cloud has free tier plus paid plansprompt-engineeringllm-evaluation

AlpacaEval

Evaluation · GPT-4 Preview (Nov 2024) as annotator

Automatic LLM evaluator and leaderboard that benchmarks instruction-following with length-controlled win rates.

Free· Free and open-source; pay only for the underlying OpenAI annotator API callsllm-benchmarkinginstruction-following eval

Arena AI

Evaluation · Multi-model

Head-to-head LLM battle arena with a public leaderboard for ranking AI models.

Free· Free to use; no public paid tier listedllm-benchmarkingmodel-comparison

Arize AI

Evaluation · Multi-model

Enterprise observability and evaluation platform for LLM agents and generative AI applications.

Freemium· Free tier and OSS Phoenix; paid/enterprise tiers via salesllm-observabilityagent-evaluation

Arthur

Evaluation · Multi-model

Open-source toolkit for testing, tracing, and monitoring production AI agents.

Freemium· Open-source (MIT) + free SaaS tier; paid/enterprise plans on requestagent-evaluationprompt-management