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Building with GPT-4o, Claude or Gemini? Enter your daily requests and average tokens to see exactly what the API will cost you per day, month and year.
Estimates use the prices you set above. Provider prices change and discounts (batch APIs, caching, committed use) can lower real bills — always confirm on the provider's pricing page before budgeting.
AI APIs charge per token — a chunk of text of roughly 4 characters or ¾ of a word. Input tokens (your prompt and context) are usually much cheaper than output tokens (the model's reply), which is why long answers cost more than long questions. Multiply your daily requests by the average tokens per request, apply the per-million prices, and you get a realistic monthly bill. The fastest ways to cut it: shorten system prompts, cache repeated context, and route simple tasks to a mini/flash model.
It depends on usage. At $2.50 per 1M input tokens and $10.00 per 1M output tokens, 1,000 requests a day averaging 800 input and 400 output tokens costs about $180 per month. Use the calculator above with your own numbers for an exact estimate.
Generating text is more compute-intensive than reading it, so every major provider charges 3–5× more for output tokens. Keeping replies concise is the easiest way to cut an AI API bill.
Shorten prompts, use prompt caching for repeated context, pick a mini or flash model for simple tasks, cap output length, and use batch APIs (often 50% off) for work that does not need instant replies.
The presets reflect widely published list prices and every price field is editable, so you can enter the exact rate from your provider plan. Always confirm current pricing on the provider website.