Anthropic’s Opus 4.6 with agent teams 1M context

Anthropic released Claude Opus 4.6, the company’s new most powerful model featuring multi agent collaboration in Claude Code, a massive context window, and new Office integrations that put the AI directly inside PowerPoint.

A new agent teams feature in Claude Code lets multiple AI agents split a single project and work simultaneously instead of handling steps one at a time

Opus 4.6 brings a 1M token context window to Anthropic's Opus tier for the first time, matching what Sonnet offers for heavy document and code work.

New Excel and PowerPoint sidebars let Claude read users’ existing templates and build models or decks natively without copying and pasting between tools.

4.6 topped most agentic benchmarks, including a leap on ARC-AGI-2 to nearly 70% though OAI’s Codex 5.3 reclaimed agentic coding highs minutes later.