Anthropic says its new Claude Haiku 5.5 model is its fastest to date.

Haiku 5.5 is only outpaced by Anthropic’s Opus models in Fast Mode. Anthropic also says it costs “around 75% less” on average than last year’s Haiku 4.5, and it’s the first Haiku-class model with an adjustable effort level. Haiku 5.5 is available now “on all platforms.”