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AI Summary
- Anthropic launched Claude Sonnet 4.5 as most advanced tool particularly for coding and complex agentic workflows, surpassing flagship Opus on SWE-Bench Verified and competing with GPT-5 Codex
- Enables extended autonomous operation (over 30 hours), enhanced tool orchestration, and new Claude Agent SDK for developers with experimental 'Imagine with Claude' feature for on-the-fly generation
- Praised as more 'steerable' and reliable, functioning effectively as 'AI colleague' for enterprise software developers with superior performance and speed advantages