How much does the Claude API cost in 2026?
The Claude API bills per million tokens: about $3 input / $15 output for Claude Sonnet 4.6, versus $0.25 / $1.25 for Haiku 4.5. An average question costs under a cent. Below 900-1,000 questions/month, the API is cheaper than Claude Pro ($20/month).
In 2026, the Claude API (Anthropic) is billed per million tokens consumed, with no subscription or commitment.
(1) Pricing by model: Claude Opus 4.8, the most capable, costs about $15 per million input tokens and $75 per million output tokens; Claude Sonnet 4.6, the reference model for analysis and coding, costs $3 input and $15 output; Claude Haiku 4.5, the fast and economical version, costs just $0.25 input and $1.25 output.
(2) In practice: an average question (about 200 prompt tokens, 500 response tokens) costs roughly $0.008 with Sonnet, $0.08 with Opus, and under $0.002 with Haiku — amounts that stay invisible at everyday usage levels. For 10 requests a day on Sonnet, expect $2 to $5 per month.
(3) Compared to the $20/month Claude Pro subscription, the API only becomes more expensive past 900-1,000 questions per month on Sonnet — a threshold rarely crossed by individual use, even heavy use.
(4) Direct access via console.anthropic.com requires creating a developer account and managing an API key, which assumes some technical background. For non-developers, aggregator platforms like Ask Aurel provide pay-as-you-go access to Claude (and 5 other AIs) through a regular conversational interface, no setup required: top up €10 minimum, credit never expires, and every request is billed at the real API cost, with transparent platform margin included.