Claude 5 API pricing

The Claude 5 family gathers four models spanning a factor of five in price today: Sonnet 5 at $2 per million input and $10 output under an introductory rate that ends 31 August 2026, rising to $3 / $15 on 1 September 2026; Opus 5 at $5 / $25; and Fable 5 and Mythos 5 sharing one card at $10 / $50, separated only by Mythos being marked limited availability on the Claude API. All four expose a 1M-token context with reasoning, tool use and prompt caching, and all four price cached input at a tenth of the input rate. Haiku 4.5, at $1 / $5, belongs to the previous generation and is not part of this set.

The rest of the range, and every rate Anthropic publishes: Anthropic API pricing