A minimalist illustration on an orange background showing a smiling cartoon man standing next to a friendly robot with a brain icon on its chest. Above them, the text reads “Claude Sonnet 4.5” in large font with the Anthropic logo. Below the characters, a bold banner states: “Here Is All You Need To Know.” The style is clean, flat, and simple, resembling retro comic art.

Anthropic Launches Claude Sonnet 4.5: Frontier AI Built for Code & Complex Tasks

On September 29, 2025, Anthropic has released Claude Sonnet 4.5, its latest frontier AI model, positioning it as the most capable and most aligned model the company has developed to date. The launch builds on the foundation of previous Claude Sonnet and Opus releases, with a focus on sustained autonomous performance, coding ability, tool use, and […]