Universal AI Prompt Formatter
Caja de Herramientas IARuns entirely in your browser, pure text templating, no AI call involved.
How to use this universal AI prompt formatter
- Choose the AI provider you're targeting.
- Fill in your task, and optionally any context and examples.
- Click "Format Prompt" and copy the structured result into that provider's chat.
Why does structure differ between providers?
Anthropic's own documentation specifically recommends wrapping distinct prompt sections in XML tags for Claude, since Claude was extensively trained to recognize and respect that structure. OpenAI and Google don't document as strict a convention, but both still benefit measurably from clearly labeled sections separating instructions from context and examples, especially in longer, multi-part prompts.
Does the exact structure really change the output quality?
For longer or multi-part prompts, yes, providers publish these structuring conventions specifically because clearer separation between instructions, context, and examples measurably reduces confusion in longer prompts. For a short, one-line request, the difference is usually negligible.
Can I use the Claude-formatted version with GPT?
You can, and it will usually still work, but GPT wasn't specifically trained to expect XML tags, so its own recommended structure (clear labeled sections) tends to work at least as well for that provider.