What’s Improved in AI Models Sonnet & Opus
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Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and record-breaking 72.5% SWE-bench score, transforming AI from quick-response tool to day-long collaborator.
The company said it was taking the measures as a precaution and that the team had not yet determined if its newst model has crossed the benchmark that would require that protection.
Anthropic, backed by Google, has launched its latest AI models, Claude Opus 4 and Claude Sonnet 4. These models offer advanced coding and reasoning skills. Claude Sonnet 4 is available for free users.
Claude Opus 4 and Claude Sonnet 4, Anthropic's latest generation of frontier AI models, were announced Thursday.
Anthropic's newest editon of its flagship AI product will address significant limitations in current large language models.