Prototype chatbot
Small product test: 500 requests/day, 1.2K input, 500 output tokens.
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AI API Cost Lab
Estimate token cost, monthly spend and free-credit burn-down before you choose an LLM API. Built for developers comparing cheap, free and OpenAI-compatible AI APIs.
Token costInput/output pricing per request, day, month and year.
Free creditsEstimate how many days a signup credit may cover.
Model shortlistCompare low-cost and free-tier planning presets.
Usage inputs
Cost estimate
Cost / request$0.0000
Cost / day$0.00
Cost / month$0.00
Cost / year$0.00
Requests / month30,000
Free credits cover—
Use this as a planning estimate.
Quick scenarios
Content workflow
Batch summaries or SEO drafts: 2K requests/day, 2.5K input, 1K output tokens.
Coding agent
Higher context usage: 300 requests/day, 12K input, 2K output tokens.
Helpful next checks
Analyze real usage
Paste usage logs to find your largest token-cost drivers.
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Daily-updated directoryDisclosure: yangmao.ai is a free research directory. Calculations are estimates and do not replace official provider billing pages.