Free Prompt Optimizer

Improve your LLM prompts with our free AI prompt optimizer and prompt enhancer. Reduce token costs, improve clarity and structure, or add examples for better results.

Your prompt

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Optimization goals

Select one or more goals, or use custom instructions below.

Reduce token usage and cost

Make the prompt more concise without losing intent — fewer tokens, lower API cost.

Improve clarity & structure

Make instructions explicit and organize them into clear sections like Role, Task, Constraints, and Output Format.

Add examples

Include short input/output examples so the model knows what a good response looks like.

Add custom optimization instructions

Your optimized prompt will appear here

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Prompt Optimizer FAQ

The Aiven Prompt Optimizer is a free online tool that rewrites your LLM prompts to improve clarity, structure, and token efficiency — without changing your intent.

Paste your prompt, select one or more optimization goals (reduce cost, improve clarity, add structure), and click Optimize prompt. You can also add custom instructions, such as a target model or output format.

Your prompt is only sent when you click optimize, so we can generate the result. We do not use it to train models.

The Aiven Prompt Optimizer is free.