# AI Prompt Optimizer

> Rewrite an existing prompt, inspect the text diff, and review why each change was made for ChatGPT, Claude, Gemini, or any LLM.

## What It Returns

- one complete optimized prompt;
- a clean view and readable diff;
- concrete change explanations; and
- a list of important constraints preserved in the rewrite.

The tool rewrites the prompt but does not execute its task. Missing facts remain visible as placeholders instead of being invented.

Related: [AI Prompt Generator](/tools/ai-prompt-generator), [Prompt Optimization Guide](/blog/posts/prompt-optimization)

Try the interactive tool: https://benchlm.ai/tools/prompt-optimizer

Canonical page: https://benchlm.ai/tools/prompt-optimizer