Free tool · Better with Claude

Claude API Cost Calculator

Estimate your monthly Claude API bill in seconds. Adjust the model, the volume, and the token sizes — see the cost breakdown live. Includes optional prompt-caching savings.

~750 words ≈ 1,000 tokens
Cap response length to control cost
3,000 per month · 36,500 per year
0%0% cached100%
How much of your input tokens are stable across requests (system prompts, reference docs, few-shot examples). Cached tokens are billed at ~10% rate.
Monthly cost
$36.00
3,000 requests
Per request
$0.01
<$0.01 in + <$0.01 out
Annual cost
$438
36,500 requests/year
Numbers are estimates based on Anthropic's published rates. Actual bills vary with usage spikes, tier discounts, and changes to pricing. Treat the output as ±15%.

How Claude API pricing works

Anthropic charges per token — roughly a word, or a few characters of non-English text. Two meter readings per call: input tokens (your prompt + system instructions + any cached context) and output tokens (Claude's response).

Pricing is per million tokens, varies by model:

Prompt caching can cut input costs to ~10% for any prefix you reuse — system prompts, knowledge docs, few-shot examples. Toggle it in the calculator above to see the difference.

Want to use Claude without writing a single API call?

Most people don't need to build their own API integration. Claude.ai with Projects does 90% of the work — and our 4 packs (Skills, Agents, Projects, Studio) give you the shortcut to power-user level without any coding.