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.

Anthropic has announced the release of its latest AI models, Claude Opus 4 and Claude Sonnet 4, which aim to support a wider range of professional and academic tasks beyond code generation. According to Anthropic, Claude Opus 4 is optimized for extended, focused sessions that involve complex reasoning, context retention and tool use.

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.

Opus CEO Tim Murnane will retire in 2026 after 38 years. Matt Rauenhorst will step in as president, taking full CEO duties in a two-phase transition.

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,