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Free ChatGPT Prompt Optimizer
Rewrite your prompts using ChatGPT and GPT-4o best practices for clearer instructions and noticeably better answers.
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Your prompt
Fill in the fields and click Generate Prompt. Your ready-to-paste prompt appears here.
How to use the ChatGPT Prompt Optimizer
- Paste the prompt you normally use with ChatGPT.
- Choose what to optimize for and whether to add an expert role.
- Click Generate Prompt and run the instruction in ChatGPT.
- Use the optimized prompt for sharper, more reliable answers.
Get the most out of ChatGPT
ChatGPT and GPT-4o respond best to prompts with a clear role, clean delimiters, an explicit output format and, for hard problems, step-by-step reasoning. This optimizer rewrites your prompt around those exact techniques. Whether you're drafting content, generating structured data, or reasoning through a problem, you'll get more consistent results.
Prefer Claude or Gemini? Use the dedicated Claude prompt optimizer or Gemini prompt optimizer, which apply each model's own best practices.
Frequently asked questions
Is this different from the general prompt optimizer?
Yes. This version applies ChatGPT- and GPT-4o-specific techniques like delimiters, system-style roles and step-by-step reasoning prompts.
Does it work with the free version of ChatGPT?
Yes. The optimized prompt works with any ChatGPT tier, though more capable models follow complex instructions more reliably.
Will it keep my original goal?
Yes, it preserves your intent while restructuring the prompt for better performance.
Is it free?
Yes, free with no sign-up.