The new model, called Claude Sonnet 4.5, is better at following instructions and can code on its own for up to 30 hours straight, the company said on Monday. By comparison, a previous model called ...
US startup Anthropic on Monday announced the launch of its new generative artificial intelligence model, Claude Sonnet 4.5, which it says is the world's best for computer programming.
Anthropic claims that Claude Sonnet 4.5 scored 77.2 percent on the SWE bench benchmark, beating GPT-5 and Gemini 2.5 Pro.
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