New Claude 4 AI model refactored code for 7 hours straight
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Summary
AI tech firm Anthropic has released two new AI models, Claude Opus 4 and Claude Sonnet 4, marking its return to larger models after focusing on mid-range Sonnet variants throughout last year.
The new models are a reflection of the increasing demand for AI applications that can work autonomously and on complex tasks.
Anthropic’s head of Claude Relations, Alex Albert, explained that the company wanted to meet this growing demand with the Opus 4, as it is better suited to handle deep logical tasks.
Opus 4 is capable of working for up to 24 hours on tasks such as coding refactoring, whereas previous models could only produce useful outputs for one to two hours.
The company has not released a Claude 4 Haiku model, the smallest and fastest, but the new Sonnet and Opus variants can handle tasks that previous versions couldn’t achieve.
