Today, Anthropic announced Claude Opus 4.5, its newest frontier model focused on coding, agents, and computer use. The company also claims that Opus 4.5 is the best coding model in the world according ...

On Monday, Anthropic announced Opus 4.5, the latest version of its flagship model. It’s the last of Anthropic’s 4.5 series of models to be released, following the launch of Sonnet 4.5 in September and ...

Opus 4.5 failed half my coding tests, despite bold claims File handling glitches made basic plugin testing nearly impossible Two tests passed, but reliability issues still dominate the story I've got ...

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Of course, Opus 4.5 does a lot more than coding. Anthropic says it is also the “best model in the world” for powering AI agents and for operating a computer, and that it’s meaningfully better than ...