CLAUDE SONNET 4.5

Summary from the TLDR AI newsletter

Anthropic's latest model boasts the highest score on the SWE-bench Verified (77.2%), alongside major improvements in computer use, reasoning, and math. The release includes major product updates: checkpoints in Claude Code for instant rollback, the Claude for Chrome extension for Max users, and the Claude Agent SDK that makes the infrastructure powering Claude Code available to all developers.