Anthropic launches Claude Haiku 5.5 with effort controls for cost-sensitive tasks

Anthropic has released Claude Haiku 5.5, an updated version of its smallest language model. The new release introduces effort controls, a feature that lets users adjust the model's computational intensity based on task requirements.

Haiku 5.5 is positioned as Anthropic's cheapest, fastest, and most capable small model to date. The effort controls are designed for high-volume, cost-sensitive applications such as text summarization and document classification, where users can trade off between speed, cost, and accuracy depending on their needs.