Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and ...

AI company Anthropic today announced the launch of two new Claude models, Claude Opus 4 and Claude Sonnet 4. Anthropic says ...

In particular, that marathon refactoring claim reportedly comes from Rakuten, a Japanese tech services conglomerate that "validated [Claude's] capabilities with a demanding open-source refactor ...

Claude Opus 4, now alleged as the world’s best coding model, delivers a record-setting 72.5% on SWE-bench and 43.2% on Terminal-bench, outperforming all competitors on long-running and complex ...

Are software engineers out of a job? Opus 4 and Sonnet 4 aim to set 'new standards' for AI-powered coding and autonomous task ...

Claude Opus 4 is Anthropic’s most advanced AI model, designed for sustained, high-performance coding and problem-solving. It greatly exceeds previous Sonnet models by working continuously for hours ...

and performance on agent tasks—like Opus 4 creating a 'Navigation Guide' while playing Pokémon," Anthropic says. Claude Opus 4 records key information to help improve its game play.

On Tuesday, Anthropic's Claude 3 Opus large language model (LLM) surpassed OpenAI's GPT-4 (which powers ChatGPT ... has also been turning heads with its performance on the leaderboard.