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2 / 4 Tools
| Attribute | Braintrust by Braintrust Data Inc. | FastChat by LMSYS Org (UC Berkeley) |
|---|---|---|
| Category | Other AI Tools Subcategory: Enterprise AI Evaluation & Observability | Other AI Tools |
| Rating & Reviews | ★New / 5.0 0 verified reviews Weighted score: 0.00 | ★New / 5.0 0 verified reviews Weighted score: 0.00 |
| Pricing Model | freemium | free |
| Starting Price | Free tier / $150/mo Free tier for small teams; Pro plan starting at $150/month; Enterprise custom tiers. | Free 100% free open-source software (Apache 2.0). |
| Platforms | WebTypeScript SDKPython SDK | PythonLinuxDocker |
| AI Capabilities | Automated AI Eval Scoring SuitesProduction Real-Time LLM TracingPrompt Versioning & Diff TestingHallucination Benchmark ScansSOC 2 Type II Enterprise Security | Chatbot Arena Elo Rating EngineDistributed Multi-Model ServingOpenAI-Compatible REST APIsVicuna Model Training Scripts |
| Overview | Enterprise evaluation, observability, and prompt engineering platform to measure, test, and ship reliable AI applications. | Open platform for training, serving, and evaluating LLM chatbots, powering LMSYS Chatbot Arena. |
| Tags | braintrustevalsobservabilityllmopstesting | lmsysevaluationservingopen-source |
