CriticalCapability
Anthropic Launches Claude Opus 4.6 Model with 1M Token Context Window
Action Required
Users must migrate to Claude Opus 4.6 or newer models to maintain functionality and avoid service disruptions due to API changes and model deprecations.
AI Impact Summary
Anthropic is releasing Claude Opus 4.6, a significant upgrade focused on enhanced reasoning and agentic capabilities. Key changes include the introduction of adaptive thinking, a 1M token context window (now generally available), and a new effort parameter replacing budget_tokens for controlling model depth. Several API breaking changes and deprecations are also occurring, notably the removal of prefilling assistant messages and the retirement of older models like Claude Sonnet 3.7 and Claude Haiku 3.5, requiring migration to newer versions.
Anthropic Launches Claude Opus 4.6 Model with 1M Token Context Window
Affected Systems
Claude Opus 4.6
- Date
- Date not specified
- Change type
- capability
- Severity
- critical