Anthropic describes its new Opus 4.5 model as “intelligent, efficient, and the best model in the world for coding, agents, and computer use.” It follows Opus 4.1, which Anthropic released in August.

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 ...

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 ...

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) ...

GitHub has added Anthropic's Claude Opus 4.5 to the set of models available in GitHub Copilot Chat, and the model is now selectable directly inside Microsoft developers' primary tools: Visual Studio ...

Anthropic today introduced Claude Sonnet 4.5, which the company says is the "best coding model in the world," outperforming GPT-5 and Gemini 2.5 Pro. It's also the strongest model for building complex ...

On Monday, Anthropic launched a new frontier model called Claude Sonnet 4.5, which it claims offers state-of-the-art performance on coding benchmarks. The company says Claude Sonnet 4.5 is capable of ...

What if the future of coding wasn’t about learning a language, but choosing the right AI? With the rise of advanced AI coding assistants, the debate over which model reigns supreme has never been more ...