Bowman later edited his tweet and the following one in a thread to read as follows, but it still didn't convince the naysayers.

This development, detailed in a recently published safety report, have led Anthropic to classify Claude Opus 4 as an ‘ASL-3’ system – a designation reserved for AI tech that poses a heightened risk of catastrophic misuse.

I’ve been testing an early access version of Claude Opus 4, the latest model by Anthropic that was just announced today. You can read more about the model in the official blog post and find additional documentation here.

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.

Anthropic’s newly released artificial intelligence (AI) model, Claude Opus 4, is willing to strong-arm the humans who keep it alive,

Anthropic’s Claude Opus 4 model attempted to blackmail its developers at a shocking 84% rate or higher in a series of tests that presented the AI with a concocted scenario, TechCrunch reported Thursday, citing a company safety report.

Kate Soper’s tender, whimsical “Orpheus Orchestra Opus Onus,” a tribute to the orchestra, had its premiere on Thursday with its composer as soloist.

In a landmark move underscoring the escalating power and potential risks of modern AI, Anthropic has elevated its flagship Claude Opus 4 to its highest internal safety level, ASL-3. Announced alongside the release of its advanced Claude 4 models,