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 launched Claude Sonnet 4.5, claiming the title of the world’s best coding model. The key breakthrough is its ability to code autonomously for up to 30 hours, a massive increase in endurance.

Anthropic has released Claude Sonnet 4.5, its most advanced coding model to date, featuring major improvements in agentic tasks, long-horizon task performance, and computer use capabilities. The ...

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) ...

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 ...

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 ...

What if the future of coding wasn’t just faster, but smarter, safer, and more collaborative than ever before? In this walkthrough, Better Stack shows how the latest advancements in AI coding models, ...

Anthropic’s Claude Sonnet 4.5 Can Code Autonomously for 30+ Hours Your email has been sent Anthropic has thrown down another gauntlet in the AI fight with Claude Sonnet 4.5, a model that the company ...