AI Prompt Cost Optimizer
Paste your prompt, pick a model and see how much you could save by tightening the wording — with monthly savings at your request volume.
Optimization result
We'll estimate tokens, monthly cost and potential savings here.
Frequently asked questions
How much can I save by optimizing my AI prompt?
A typical production prompt can be shortened by 20–40% without losing quality — by removing redundant instructions, filler phrases and verbose formatting. At 10,000 requests/month on GPT-5, saving 100 tokens per request saves roughly $12.50/month on input costs. Savings scale linearly with request volume.
What makes a prompt use too many tokens?
Common culprits: redundant politeness phrases ("Please...", "I would like you to..."), repeated instructions, verbose role-setting, long examples that could be shorter, and over-specified JSON schemas. System prompts usually have the most optimization potential since they're sent with every single request.
Does prompt optimization hurt output quality?
Soft optimization (removing redundancy without changing semantics) typically has no effect on quality. Aggressive optimization can degrade outputs if constraints are removed. The optimizer offers three levels — always test the optimized version before deploying to production.
Should I optimize the system prompt or the user message?
System prompts are higher-value targets since they're sent with every request. Even a 50-token saving in your system prompt saves 50 × monthly_requests tokens. User messages are harder to control but you can guide users to be concise. For agent loops, also consider prompt caching — see the Agent cost calculator.