After launching Claude Sonnet 4.5 (late September) and Claude Haiku 4.5 (mid-October), Anthropic on Monday unveiled a new frontier AI model, Claude Opus 4.5, which features state-of-the-art (SOTA) ...

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 ...

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 ...

Anthropic released its most capable artificial intelligence model yet on Monday, slashing prices by roughly two-thirds while claiming state-of-the-art performance on software engineering tasks — a ...

Anthropic today released Opus 4.5, its flagship frontier model, and it brings improvements in coding performance, as well as some user experience improvements that make it more generally competitive ...

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