… In Opus 4.7’s system card, Anthropic wrote that Opus 4.7 doesn’t even advance the company’s “capability frontier,” since Claude Mythos Preview received higher results “on every relevant evaluation.” For security reasons, Anthropic is only currently making Mythos Preview available privately to selec… …
… OpenAI has staggered the release of previous cybersecurity-focused models, in addition to its new purpose-built life sciences model GPT-Rosalind, which is intended to support biology research and drug discovery. …
Chinese AI company DeepSeek released a preview of its hotly anticipated next-generation AI model V4 on Friday, saying that the open-source model can compete with leading closed-source systems from US rivals including Anthropic, Google, and OpenAI. …
… Like Glasswing, Daybreak isn’t built on just one AI model — OpenAI says “Daybreak brings together the most capable OpenAI models, Codex, and our security partners.” Daybreak also involves specialized cyber models, including GPT-5.5 with Trusted Access for Cyber and GPT-5.5-Cyber, which began rollin… …
… Anthropic recently released Claude Opus 4.7 and also announced Mythos Preview, a non-public model it says is uniquely advanced in cybersecurity. OpenAI quickly followed with GPT-5.4-Cyber, its own model trained to flag cybersecurity vulnerabilities. …
Google DeepMind, Microsoft, and Elon Musk’s xAI have agreed to allow the US government to review new AI models before they’re released to the public. …
All of the updates from Elon Musk and Sam Altman’s battle over OpenAI See all Stories Posted May 12, 2026 at 8:11 PM UTC H Hayden Field The chair of OpenAI’s safety and security committee said they’ve formally delayed its model releases. …
… Other unreleased Anthropic AI models have also been accessed by the group, according to Bloomberg.
… Bloomberg reports the group accessed Mythos by making “an educated guess about the model’s online location,” using information about Anthropic’s other models exposed in the breach of Mercor — a company that makes AI training data — along with access one member had through contract work evaluating A… …
… OpenAI says the problem continued to worsen with subsequent model releases, until it found that its reinforcement training rewarded the quirky metaphors with the Nerdy personality, which newer models were training on. …
