Anthropic Launches Claude Opus 4.5 with New Developer Features
Action Required
Users must migrate existing applications to the new Claude Opus 4.5 model or compatible models to avoid service disruption due to model deprecations.
AI Impact Summary
Anthropic has launched Claude Opus 4.5, a new model with enhanced vision and coding capabilities, alongside several developer features like programmatic tool calling and client-side context compaction. This release introduces significant improvements to the Claude platform, including increased context window support (up to 1M tokens), new pricing options, and various API enhancements. The deprecation of older models (Sonnet 3.7, Haiku 3.5, and Opus 4) alongside the retirement dates for those models necessitates immediate migration planning for existing applications.
Affected Systems
- Date
- Date not specified
- Change type
- capability
- Severity
- high