Claude just made 1M context window the default

Anthropic just made the 1M token context window the DEFAULT for Claude Opus 4.6 and Sonnet 4.6. No beta headers, no opt-in, no extra config. It just works now.

What this means for you:

On Max, Team, and Enterprise plans, you automatically get the full 1M context window in Claude Code. No setup needed.

The pricing stays the same. A 900K token request costs the same per-token rate as a 9K one. No multiplier, no premium tier. Standard pricing across the entire window.

API: $5/$25 per million tokens for Opus, $3/$15 for Sonnet. Available on Claude Platform, Azure, and Vertex AI.

Why this is a big deal for coding:

You can now feed entire codebases into a single conversation. Full repo context, massive refactors, cross-file analysis... all without hitting a wall. If you've been running into context limits while working on bigger projects, that friction just disappeared.

This is huge for agents too. Long-running coding agents that need to hold state across hundreds of tool calls can now do it without losing context halfway through.

If you're on the API, just update to the latest SDK and you're good. If you're using Claude Code on Max/Team/Enterprise, you already have it.

Go try it. Throw your biggest project at it and see what happens.

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