… Fable 5, which was a tuned version of Mythos 5 for public release, remains unavailable. Anthropic said that it is still working with the government to expand Mythos 5 access and make Fable 5 available again, but there's no timeline. …
… Anthropic is also working with Amazon, Microsoft, Google, and other Glasswing partners on a common framework to assess AI jailbreak severity. The proposed framework will look at capability gain, breadth of capability gain, ease of weaponization, and discoverability. …
… After preparing appropriate guardrails, early this week, Anthropic launched Claude Fable 5 and Mythos 5 , its most capable AI models. …
… With Claude Fable 5’s promotion now extended and GPT-5.6 apparently nearing a broad release, the competition between OpenAI and Anthropic in the frontier AI model market is set to heat up again this week. Openai Anthropic Claude fable 5 Gpt-5.6 Report a problem with this article
… This is great for customers and enterprises that want to build autonomous and domain-specific AI agents using Claude without moving outside Microsoft’s cloud platform. …