Comet launches: a browser built to think with you.

An AI-native browser where the assistant runs entire browsing sessions, books, buys, and briefs you, while keeping full context across tabs.

First serious attempt at a browser whose primary user is the agent, not the human pointing at it.

• Jun 06, 2026Anthropic updated prompt caching to automatically read from the longest previously cached prefix when breakpoints are set.
• Jun 06, 2026Anthropic optimized prompt caching support in the Message Batches API to improve cache hit rates.
• Jun 06, 2026Anthropic added a delete endpoint to the Message Batches API for managing batch processing tasks.

This is the world we build in. It moves this fast. We move with it.