Prompt frameworks, model by model
A good prompt is not a magic phrase. It is a filled-in brief.
Learn the frameworks, see what eight providers document about prompting their own models, and build a prompt shaped the way that vendor actually asks for. Everything runs in your browser.
Start here if you already prompt daily
Myths & anti-patterns
What the research says about politeness, tipping, and "think step by step".
Reasoning models
Why advice written before 2025 now makes your prompts worse.
Prompt improver
Paste a prompt you already use and see what is missing.
Prompt library
Ready-made starting points by role, each opening straight into the builder.
How this site is grounded
Every framework and model page links to the vendor documentation or peer-reviewed paper it was written from, and carries the date it was last checked. Where a framework has no vendor source, the page says so.