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Promptfoo vs Confident AI (DeepEval)
Quick verdict
Promptfoo and Confident AI (DeepEval) are closely matched on licensing, self-hosting and OpenTelemetry support — the decision comes down to pricing and framework integrations below.
Side-by-side comparison from the Agent Observability Index: licensing, self-hosting, pricing model and integrations — no vendor copy, primary sources linked.
| Promptfoo | Confident AI (DeepEval) | |
|---|---|---|
| One-liner | Config-file-driven open-source CLI for prompt evals, regression testing and LLM red-teaming that runs in CI. | 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 | Yes | Yes |
| Self-hostable | Yes | Yes |
| Pricing model | freemium | freemium |
| Pricing notes | CLI/library free (MIT); paid enterprise for red-teaming at scale | DeepEval framework free OSS (Apache-2.0); Confident AI cloud has free + paid tiers |
| Frameworks | openai-sdk, anthropic, langchain, ollama, vercel-ai | openai-sdk, langchain, llamaindex, anthropic |
| GitHub stars | 22.2k | 16.1k |
| Maturity (GitHub signal) | 100/100 (Mature) | 100/100 (Mature) |
| Funding / ownership | $5M seed (a16z, 2024) | YC W25; $2.2M seed |
How to choose
- Both link to primary pricing sources below — verify current tiers before committing; this market shifts monthly.
Sources: Promptfoo · Confident AI (DeepEval)
Frequently asked questions
Is Promptfoo or Confident AI (DeepEval) open source?
Promptfoo: Yes. Confident AI (DeepEval): Yes.
Can Promptfoo and Confident AI (DeepEval) be self-hosted?
Promptfoo: Yes. Confident AI (DeepEval): Yes.
Promptfoo vs Confident AI (DeepEval): which should I choose?
Promptfoo and Confident AI (DeepEval) are closely matched on licensing, self-hosting and OpenTelemetry support — the decision comes down to pricing and framework integrations below.