Claude 1M Context GA: Practical Rollout Guide
Claude’s 1M token context is no longer just a beta experiment.
As of March 13, 2026, Anthropic says 1M context is generally available for Opus 4.6 and Sonnet 4.6, which changes how teams should design long-code and long-document workflows.
This post summarizes what is actually available now, what still has caveats, and how to roll it out safely in production.