October 07, 2026

Model launch

Claude Haiku 5.5 in Assistant and Agents

Claude Haiku 5.5 is now available as a selectable model in Glean Assistant and Agents. It is the fastest model in the Claude 5.5 family, built for high-volume, speed-sensitive work, and a meaningful upgrade over Haiku 4.5. It is also the first Haiku model with effort levels, giving teams control over how much the model thinks and how many tokens it uses. It showed promise on simpler tasks such as information extraction, preparing discovery materials, and structured deliverables. This feature may be subject to usage-based pricing.

How to access: Admin gated — admins manage model availability from the Admin Console. Once enabled, select Claude Haiku 5.5 from the model picker in Assistant or in your agent's model settings.

Model Launch [ROAD-1779]