Anthropic PBC has launched updated versions of its Mythos and Fable artificial intelligence models, aiming to cement its leadership in AI development ahead of a planned U.S. stock market listing. The company announced that Fable 5.2 will be released on Monday, capable of tackling more complex software engineering tasks, performing hardware-related functions such as robot control, and supporting long-running projects—all while coordinating more than 1,000 AI agents simultaneously. The companion Mythos 5.2 features relaxed restrictions in cybersecurity and life sciences safeguards and will be made available to select institutions through a previously announced validation program. Both models run faster than their predecessors, and Fable is priced lower.
