THIS IS VERY CONCERNING.
Anthropic just called for a global pause in AI development, warning that AI is getting close to improving itself without human help.
In April 2026, Claude ran a full AI research project completely on its own. Humans picked the topic. Claude came up with every experiment, ran every test, and delivered the results.
Two human researchers spent a full week on the same problem and got 23% of the way there.
Claude got 97%.
Claude Mythos Preview is now 52x faster than a skilled human at improving AI training code. The same task takes a human 4 to 8 hours. Claude does it better.
Claude already writes 80% of Anthropic's own code. Their engineers are getting 8x more work done than in 2024, not because they work harder, but because Claude does most of it.
In March 2024, Claude could handle a 4 minute task on its own. Today it handles 12 hour tasks. That number doubles every 4 months. Week long tasks are expected by 2027.
Anthropic warns once AI can build and improve its own next version without any human help, nobody knows how fast things move after that or if humans will still be able to control it.