Models · 2026-10-07

Anthropic releases compact Claude Haiku 5.5 model

Claude Haiku 5.5 was released on October 7 and replaced the previous fast model, Haiku 4.5. Anthropic calls it the cheapest, fastest, and most powerful of the company's small models.

✨ What it's for

The model is designed for a large number of simple tasks where speed and price matter. According to Anthropic, it is significantly cheaper than the previous version.

Exact pricing for using the API depends on the terms on Anthropic's website.

Sources: 🔗 Claude Help Center (Anthropic)