Anthropic GA: Claude Sonnet/Opus 4.5/4.6 with 1M Token Context Window
Action Required
Users must migrate to the new models and update their applications to leverage the expanded context window and structured output capabilities to avoid disruptions.
AI Impact Summary
Anthropic is generally releasing new capabilities for Claude Sonnet and Opus models, including increased context windows (up to 1M tokens), expanded schema support for structured outputs, and new features like fast mode and compaction API. The 1M token context window is now generally available for Claude Opus 4.6 and Sonnet 4.6, marking a significant upgrade for long-form content generation and agentic tasks. This release also includes updates to pricing and data residency controls, impacting how users manage costs and data location.
Affected Systems
- Date
- Date not specified
- Change type
- capability
- Severity
- high