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 ...

OpenAI said on Monday that it would soon wind down the availability of GPT-4.5, its largest-ever AI model, via its API. GPT-4.5 was released only in late February. Developers will have access to GPT-4 ...

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 Claude Haiku 4.5, making the model available to all users as its latest entry in the small, fast model category. The company positions the new model as delivering performance levels ...