Anthropic launches Claude Sonnet 4.5, claims it is the world's best coding model, strongest for building complex agents, and its "most aligned" frontier model (Anthropic)

Anthropic:
Anthropic launches Claude Sonnet 4.5, claims it is the world's best coding model, strongest for building complex agents, and its “most aligned” frontier model  —  Claude Sonnet 4.5 is the best coding model in the world.  It's the strongest model for building complex agents.

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