… Separately, XBOW released data suggesting “frontier models have taken a major step forward in vulnerability discovery.” Meanwhile, Microsoft said its multi-model agentic setup, MDASH, was used to discover 16 CVEs in this week’s Patch Tuesday updates and is the leader on the CyberGym security evalua… …
Security Claude Opus wrote a Chrome exploit for $2,283 Pause your Mythos panic because mainstream models anyone can use already pick holes in popular software Anthropic withheld its Mythos bug-finding model from public release due to concerns that it would enable attackers to find and exploit vulne… …
… Anthropic’s previous Opus model upgrade arrived on April 16 with the release of version 4.7. Today’s release comes just six weeks later. The new model is available globally from today. …
… The neutered release of Claude Fable 5 hints at Anthropic’s business tension of wanting to release a Mythos-class AI model for general use before the tech industry has resolved the cybersecurity concerns of these models. …
… It intends to release "Mythos-class models" in the future, though, when those safeguards become available. …
… There’s still more to be done: we’re working on developing and releasing models that provide many of the same capabilities as Opus at a lower cost. Not only that, but we plan to release a new class of model with even higher intelligence than Opus. …
… Now they have a new Big Bad: an AI model that can generate zero-day vulnerabilities. Anthropic made the model and named it Mythos. Thankfully, the AI company decided not to release it, because it would break the internet – and not in a good way. …
… This tallies with external testers’ experience of Mythos Preview’s performance, and with recent additional evaluations of the model: The UK’s AI Security Institute reports that Mythos Preview is the first model to solve both of their cyber ranges simulations of multistep cyberattacks end to end; Mo… …
… Jun.11 Release Copilot CLI: Configure everything from one place with /settings client apps copilot Jun.11 Release GitHub Agentic Workflows is now in public preview actions copilot Jun.11 Release Agentic workflows no longer need a personal access token copilot Jun.10 Release Copilot Chat now sees yo…
… Notably, Fable, being Anthropic's first Mythos-class AI model, comes after the company unveiled a larger, first-of-its-kind model that it deemed too dangerous to release to the public. Fable is a cut-down and regulated version of that larger model. …
