Anthropic GA: Claude Sonnet 4.5, Opus 4.5, Haiku 4.5 with New Features

AI Impact Summary

Anthropic is releasing several new capabilities and generally available models, including Claude Sonnet 4.5, Opus 4.5, and Haiku 4.5, alongside expanded schema support and improved latency. Key changes include moving the `output_format` parameter to `output_config.format`, increasing the max_tokens cap to 300k for Opus 4.6 and Sonnet 4.6, and introducing features like automatic caching and data residency controls. This update impacts developers who utilize the Claude API and SDKs, requiring them to adapt to the new parameter names and capabilities.