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Promptfoo
What ChatGPT, Claude, Gemini & Grok actually say · July 2026
The verdict
Promptfoo appears in 1 AI-ranked category.
GPT #5Claude —Gemini #4Grok —
Extremely fast, local-first CLI tool that is the gold standard for rapid prompt iteration, regression testing, and built-in red-teaming/security scanning.
What would move Promptfoo up
- GPT Add a more complete hosted collaboration, dataset, and production-monitoring layer without losing its local-first simplicity.
- Gemini Add native support for cloud-synchronized test histories and dataset sharing without relying on self-managed configurations or paid enterprise add-ons.
Top alternatives per the models: Braintrust · LangSmith · DeepEval · Arize Phoenix
Rankings are computed from what the models answer, re-polled continuously · raw reasoning shown verbatim · methodology