Anthropic launches Claude Sonnet 4.5 to boost AI reasoning, coding and long-task handling

AI giant Anthropic launched Claude Sonnet 4.5, its latest large language model, along with a series of updates across its products on Monday. The company says the new model performs better in reasoning, coding, and computer-based tasks than earlier versions.

Anthropic unveils Claude Sonnet 4.5 and updates to Claude Code

One of the key additions is a set of updates to Claude Code. These include checkpoints that let users save progress and return to earlier states, a refreshed terminal interface, and a new extension for Visual Studio Code. The Claude API…