Claude Haiku 5.5 API pricing rises for prompts over 100K tokens
Anthropic's October 7 release notes add Claude Haiku 5.5 as the default Haiku model on its API. Listed pricing is $0.10/$0.50 per million tokens, rising to $0.50/$2.50 for prompts over 100K tokens.
SessionWatcher editorial · Published · Updated · Source announcement: 2026-10-07
Haiku 5.5 becomes the API default
Anthropic's October 7 Claude Code v2.1.293 release notes add Claude Haiku 5.5, identified as claude-haiku-5-5. The announcement says it is now the default Haiku model on the Anthropic API and has a 1M-token context window.
Sources: v2.1.293
Longer prompts carry higher rates
The release lists pricing at $0.10/$0.50 per million tokens, with rates of $0.50/$2.50 for prompts over 100K tokens. Both listed rates are five times higher above that prompt threshold. The announcement does not specify which Claude subscription plans include Haiku 5.5 or how using it counts against subscription limits.
Sources: v2.1.293
AI assisted reporting, checked against the linked official sources. Source pages checked 2026-10-07. Editorial process and corrections.