Anthropic launches Claude Haiku 5.5, its fastest and cheapest AI model yet

AI giant Anthropic has launched Claude Haiku 5.5, the third model in its Claude 5.5 family, as the company continues to broaden its artificial intelligence portfolio ahead of a planned initial public offering (IPO). This latest release by Anthropic follows the launch of Claude Opus 5.5 and Claude Sonet 5.5, completing a three-tier lineup aimed at different enterprise and developer use cases. Launching the new model Anthropic said that it is designed for high-volume, cost-sensitive workloads and is suited for tasks such as classification, summarisation, information extraction, live customer support, voice agents and in-app assistants. According to Anthropic, Haiku 5.5 is its fastest small model to date and is intended for applications where speed and affordability are critical.

Anthropic is positioning Haiku 5.5 as a lower-cost alternative