Christmas Came Early — Opus 4.6 with 1M Context Window is HERE

If you've been running Claude Code on Sonnet, you've been driving a sports car in first gear.

Opus 4.6 is now available with a 1 MILLION token context window. That's not a typo. One million tokens. Your entire codebase, loaded and understood, in a single conversation.

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⚓ What Just Dropped

Anthropic released Claude Opus 4.6 back on February 5th, but the 1M context window is the game-changer that's now accessible in Claude Code. Here's what you get:

1,000,000 token context window — load massive codebases, entire repos, long transcripts, all at once
128K token output capacity — no more getting cut off mid-generation
Adaptive thinking — the model decides how much reasoning to use based on your task complexity
Agent teams — multiple Claude agents working on tasks together inside Claude Code
Context compaction — long-running sessions stay smart instead of forgetting what happened 20 minutes ago
Top benchmark scores — #1 on Terminal-Bench 2.0 and Humanity's Last Exam across all frontier models

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⚓ Why This Matters for YOU

If you've ever hit that wall where Claude "forgets" what you were working on, or you had to keep re-explaining your project structure — that era is over. A million tokens means Claude can hold your entire project in its head, start to finish.

For context: most novels are about 80,000-100,000 tokens. You now have room for 10 full novels worth of code and conversation in a single session.

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⚓ How to Switch

In Claude Code, run:

/model opus

That's it. You're on the most powerful coding AI on the planet.

If you want to set it as your default so you never have to think about it again, add this to your Claude Code settings.

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⚓ The Official Announcement

Read Anthropic's full breakdown here: Introducing Claude Opus 4.6

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🗝️ Key Takeaways