We read every ChatGPT (GPT-4o / 4.1) prompt guide so you don't have to.
Paste your prompt below - we'll rewrite it using OpenAI's official best practices.
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- Built on OpenAI's official prompting guide
- Handles vision, function_calling, structured_outputs_json_schema, code_interpreter automatically
- Free, instant, no signup
What ChatGPT actually rewards
We pulled this from OpenAI's official guidance and what works in production. The short version:
- →Be specific and precise; avoid vague language and 'etc.'
- →Assign a persona via system message.
- →Provide 1-3 examples for non-trivial tasks.
- →State output format explicitly (JSON schema, bullet list, paragraph length).
- →Use Markdown or XML to delimit sections.
Before you hit send, check:
- ☐Be specific and precise; avoid vague language and 'etc.'?
- ☐Did you assign a persona via system message?
- ☐Did you provide 1-3 examples for non-trivial tasks?
- ☐Did you state output format explicitly (JSON schema, bullet list, paragraph length)?
- ☐Did you use Markdown or XML to delimit sections?
Common mistakes we fix automatically
- AvoidDon't use 'etc.' or open-ended lists.
- AvoidDon't rely solely on negatives — pair with positive direction.
Ready to rewrite for ChatGPT?
Frequently asked questions
- Which versions of ChatGPT (GPT-4o / 4.1) does this support?
- We support the latest ChatGPT (GPT-4o / 4.1) versions. We apply the prompt patterns OpenAI recommends for each, so the rewrite is tuned to the version you're using.
- Is my prompt stored or used for training?
- No. Prompts are sent to the rewriter, scored, returned, and discarded. We don't train on them and we don't keep them around.
- Do I need to know prompt engineering to use this?
- Nope. That's the point. Paste what you have, click Rewrite, get back a version that follows OpenAI's official guidance.
- What makes this different from ChatGPT (GPT-4o / 4.1)'s own "improve prompt" feature?
- Built-in optimizers use the model's own preferences. Ours is built on OpenAI's official documentation and patterns that consistently produce better results in production. ChatGPT (GPT-4o / 4.1) works best with prompts in the 200-2000 token range, and we keep rewrites inside that window.
Optimizing for a different AI?