Anthropic Launches Claude Opus 4.5 with New Features and Deprecations
Action Required
Developers using Claude models must migrate to the new Opus 4.5 or Sonnet 4.6 versions to maintain functionality and avoid service disruptions due to model deprecations.
AI Impact Summary
Anthropic has launched Claude Opus 4.5, a significant upgrade to their Claude model family, introducing advanced capabilities like vision, coding, and tool calling. This release includes several new features, such as programmatic tool calling, tool search, and the effort parameter for controlling thinking depth. Notably, the 1M token context window is now generally available, and several models have been deprecated, requiring migration to newer versions like Opus 4.6 or Sonnet 4.6. This update impacts developers who rely on Claude for complex tasks and long-horizon agentic workloads.
Affected Systems
- Date
- Date not specified
- Change type
- capability
- Severity
- high