AI API cost calculator
What does your AI API usage cost on each model?
Type in your monthly tokens, or requests and their average size, then tick the models to compare. You get each model's monthly cost at list price, cheapest first. It runs in your browser, and nothing you type is sent or saved.
Per month at list price
60M input and 10M output tokens
- Claude Haiku 5.5Anthropic$11.00
$6.00 input, $5.00 output
- GPT-5 miniOpenAI$35.00
$15.00 input, $20.00 output
- Gemini 3.8 FlashGoogle$82.50
$45.00 input, $37.50 output. Launch price until December 31, 2026
- Grok 4.3xAI$100
$75.00 input, $25.00 output
- GPT-6.1 TerraOpenAI$110
$60.00 input, $50.00 output
- Grok 4.7xAI$180
$120 input, $60.00 output
- Claude Sonnet 5.5Anthropic$220
$120 input, $100 output
- GPT-5.5OpenAI$600
$300 input, $300 output
List prices as of October 28, 2026, standard tier. Cached tokens count at the cache read price; Anthropic cache writes are left out. Long prompt prices apply only in requests mode, where the prompt size is known. Taxes, regional prices, and tool fees are not included.
This is the quick monthly estimate. To compare input, cached input, and output prices and share a link that keeps your numbers, use the LLM token cost calculator.
See what you really spend, per key.
Free covers three providers with routing, caching, and one monthly cap, and shows your spend from real token counts. Your providers bill you directly, and FUSR.ai adds nothing to token prices.
You bring your own API keys. Chat plans like Claude Pro or ChatGPT Plus are separate and FUSR.ai does not use them.