In development
Will be back again.
A new version is under development.
- Scene 1, Prompting: the browser window draws itself on and a prompt — “Write a product update email” — is typed in character by character, with two phrases picking up a wobbly underline as they land.
- Scene 2, Optimizing: a suggestions panel slides in with three chips — “add audience”, “set tone”, “define output format” — the quality counter climbs from 41 to 88 and shifts to accent color, and the two flagged phrases get struck through.
- Scene 3, A/B testing: the window splits into pane A and pane B, three checks tick in for test 1 through test 3, a circled checkmark lands under pane A, and pane B dims — the version that provably works, chosen.
- Scene 4, Routing models: three connectors fan out from the prompt to GPT, Claude, and Gemini with illustrative latency ticks beside each, and the Claude route thickens and glows to show the selected model.
- Scene 5, Versioning: the window duplicates into three offset, slightly rotated cards labeled v1, v2 and v3, v3 lifts to the front while the others recede, and a thin timeline line connects all three.
- Scene 6, Lock: the scattered elements converge to the center and collapse into the 41Prompts mark, the wordmark fades in beneath, and after a hold the whole window dissolves back to an empty frame to loop.
41Prompts is the workbench for the prompt layer. Write a prompt and get a live quality score with concrete fixes; run it as a unit test against GPT, Claude, and Gemini side by side; keep every version, diff, and result. Stop guessing which prompt works and start shipping the one that provably does.
Optimize
Live prompt scoring with concrete inline fixes.
Unit test
One prompt, every model, side by side, versioned.
Ship
Export API-ready and validate before the prompt reaches production.