Anthropic upgrades Claude with new Haiku 5.5 model, details here

Anthropic has released its latest AI model with Claude Haiku 5.5. The new version arrives about a year after the previous Haiku model upgrade. The three main models are Haiku (smallest and cheapest), Sonnet (medium size and price), and Opus (largest and most expensive of the three). There’s also Fable/Mythos, which is even more capable and costly, which represents Anthropic’s highest tier. Today’s release upgrades Claude’s Haiku model from version 4.5 to version 5.5. This marks the third Claude 5.5 model upgrade over the last month, following Opus and Sonnet upgrades.

First reported by 9to5Mac. This page is a short excerpt; the full text is theirs.