We read every OpenAI o1 / o3 / o4 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 internal_chain_of_thought, reasoning_summaries, tool_use automatically
- Free, instant, no signup
What OpenAI o1 / o3 / o4 actually rewards
We pulled this from OpenAI's official guidance and what works in production. The short version:
- →Use developer role messages, not system.
- →Use delimiters (XML, Markdown, section titles).
- →Prefer zero-shot first.
- →Trust internal reasoning.
Before you hit send, check:
- ☐Did you use developer role messages, not system?
- ☐Did you use delimiters (XML, Markdown, section titles)?
- ☐Prefer zero-shot first?
- ☐Trust internal reasoning?
Common mistakes we fix automatically
- AvoidDon't say 'think step by step' or 'explain your reasoning' — counterproductive.
- AvoidDon't add many few-shot examples.
Ready to rewrite for OpenAI o1 / o3 / o4?
Frequently asked questions
- Which versions of OpenAI o1 / o3 / o4 does this support?
- We support o1, o3, o3-mini, o4. 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 OpenAI o1 / o3 / o4'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. OpenAI o1 / o3 / o4 works best with prompts in the 50-500 token range, and we keep rewrites inside that window.
Optimizing for a different AI?