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Braintrust vs Confident AI (DeepEval)
Quick verdict
Key difference: Confident AI (DeepEval) is open-source while Braintrust is proprietary.
Side-by-side comparison from the Agent Observability Index: licensing, self-hosting, pricing model and integrations — no vendor copy, primary sources linked.
| Braintrust | Confident AI (DeepEval) | |
|---|---|---|
| One-liner | Eval-first AI engineering platform with logging, datasets, an LLM proxy and a purpose-built trace database (Brainstore), aimed at production regression-catching. | Pytest-style open-source LLM evaluation framework (DeepEval) with a hosted platform for benchmarking, regression testing and red-teaming (DeepTeam). |
| Category | Evals & Testing | Evals & Testing |
| OpenTelemetry-native | — | — |
| Open source | No | Yes |
| Self-hostable | Yes | Yes |
| Pricing model | freemium | freemium |
| Pricing notes | Free developer tier; usage-based paid plans; enterprise hybrid/self-hosted data plane | DeepEval framework free OSS (Apache-2.0); Confident AI cloud has free + paid tiers |
| Frameworks | openai-sdk, anthropic, langchain, vercel-ai | openai-sdk, langchain, llamaindex, anthropic |
| GitHub stars | — | 16.1k |
| Maturity (GitHub signal) | — (no public repo) | 100/100 (Mature) |
| Funding / ownership | $36M Series A (a16z, 2024) + $80M Series B (ICONIQ, Feb 2026, ~$800M valuation) | YC W25; $2.2M seed |
How to choose
- Choose Confident AI (DeepEval) if open-source licensing or full data control is a hard requirement.
- Both link to primary pricing sources below — verify current tiers before committing; this market shifts monthly.
Sources: Braintrust · Confident AI (DeepEval)
Frequently asked questions
Is Braintrust or Confident AI (DeepEval) open source?
Braintrust: No. Confident AI (DeepEval): Yes.
Can Braintrust and Confident AI (DeepEval) be self-hosted?
Braintrust: Yes. Confident AI (DeepEval): Yes.
Braintrust vs Confident AI (DeepEval): which should I choose?
Key difference: Confident AI (DeepEval) is open-source while Braintrust is proprietary.