AI Prompt Optimizer

Paste a rough prompt and get a clearer, better-structured version that produces more reliable results from ChatGPT, Claude, Gemini and other models.

✓ Free to Use✓ No Signup✓ Any LLM✓ Powered by AI

Your prompt*

Target model

Try an example:

or press ⌘/Ctrl + Enter

Optimized prompt

Your optimized prompt and a summary of what changed will appear here.

Drop in the rough prompt you're using today — however messy or short it is.

Optionally choose the model you're targeting so the rewrite fits its strengths and formatting.

You get a clearer, structured prompt with explicit format and constraints — plus a summary of what changed.

Is the prompt optimizer free?

Yes, it's completely free with no signup. A fair-use rate limit keeps it available for everyone.

Which AI models does it support?

It works for any LLM — ChatGPT/GPT-4o, Claude, Gemini, Llama, Mistral and more. Choosing a target model tailors the phrasing and formatting.

Will it change what my prompt asks for?

No. It preserves your intent and only improves clarity, structure, context, and output constraints so the model responds more reliably.