Search finds candidates, Fetch delivers page content. A small research experiment shows why it takes the link between question, source passage and claim to make a usable agent.
Anthropic is bringing chat and Cowork together for Enterprise. What remains technically decisive: turning a conversation into a clearly defined file task.
Anthropic’s research preview of 21 October 2026 moves work into the background. What matters is which state an agent tracks and when it really needs you.
Haiku 5.5 was released on 7 October 2026. A concrete classification contract shows why small models above all need well-defined subtasks.