PromptBench
Version, test & compare your AI prompts across models
Stop guessing which prompts work. PromptBench lets you run the same prompt on Claude, GPT-5, o3, and Mistral side-by-side, score outputs 1-10, and track performance over time with analytics. Features: multi-model playground, prompt versioning, scoring, analytics dashboard, chat & complete modes. 10 models supported. Free with your own API keys. Pro $12/mo with managed credits.
“what does not kill me makes me stronger”
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