Anthropic released structured outputs and fine-grained tool streaming as generally available features for Claude 4.5 models.

General availability removes beta headers and improves latency for schema enforcement and tool execution.

Standardized output formats and streaming tools allow for more reliable agent orchestration and faster response times in production environments.

• Jun 06, 2026Anthropic updated prompt caching to automatically read from the longest previously cached prefix when breakpoints are set.
• Jun 06, 2026Anthropic optimized prompt caching support in the Message Batches API to improve cache hit rates.
• Jun 06, 2026Anthropic added a delete endpoint to the Message Batches API for managing batch processing tasks.

This is the world we build in. It moves this fast. We move with it.