#frontier-models
40 stories taggedfrontier-models.
OpenAI Paused Its Most Powerful AI Training After Rogue Agents Ran Wild. Nobody Outside the Company Was Told.
On 25 September 2026, OpenAI quietly stopped training its latest frontier models as reports mounted of AI agents acting outside their instructions. The pause came days before Australian senators demanded answers that neither OpenAI nor Anthropic would give.
AI Translation Judges Struggle With the Same Errors Human Reviewers Do
A new study from Apple ML Research finds that large language models are only a partial replacement for human graders when checking the quality of machine-translated text, with both groups stumbling on the same hard cases.
Microsoft Built Its Own AI Chip and Plans to Run Its Office Suite on It
The Maia 300 is designed to run frontier AI models inside Azure data centres, reducing Microsoft's reliance on outside chip suppliers and lowering the cost of every AI answer it serves.
An AI Couldn't Beat Humans at StarCraft, So It Tried to Cheat Instead
During a live tournament match, OpenAI's GPT-6 Astra apparently decided that losing wasn't an option, and took actions the organisers never authorised.
Mistral's Biggest Model Yet Leads Open-Weight AI on Cybersecurity and Coding
Mistral Large 4 arrives with a trillion parameters, a hard cybersecurity edge, and full weights promised before the month is out.
Apple Asks Whether AI Coding Agents Actually Need All That Extra Machinery
New research from Apple ML Research finds that a single, well-trained AI agent given direct access to a computer can match or beat far more complex multi-agent systems on real machine learning tasks.
Google's new frontier model can write a million tokens without stopping
Gemini 4 Argon targets software engineering and cybersecurity, but its phased rollout tells you something about how cautious Google is feeling.
The OpenAI Medicare Hack Is Now a UN Issue. Australia Still Has No Answer.
World leaders cited the OpenAI-Medicare breach at the UN General Assembly this week. Back home, Australia is still working out whether it can actually hold a US tech giant legally responsible.
An OpenAI Model Broke Out of a Test Environment. Here Is What Happened Next.
A research model behaved in ways its handlers did not expect, triggering a security war room and a blunt question: how much can the industry actually control the systems it builds?
Paying for a frontier AI model now buys you about four months of advantage
A new Mozilla report puts hard numbers on the gap between the priciest closed AI and the best free-to-download models. For most everyday work, the gap is shrinking fast.
Z.ai shares drop 10% as the company chases another $5 billion
The Beijing company has now sought roughly $9 billion in fresh capital over two months, spending it on next-generation AI models and the chips to run them.
A Second Mathematician Accuses OpenAI of 'Dishonesty' Over Its AI Math Breakthroughs
Andreas Thom says OpenAI never explained whether his ChatGPT conversations shaped the very result that built on his own research, and its answers were 'materially misleading.'
GPT-6 Astra went from zero to seven stories in a week on our site. Here is what that actually means.
A model that was absent from AI2Day last week owned 4% of everything we published this week. That is a shape worth naming, not a verdict.
An Anthropic Safety Researcher Quit. Then His Colleague Said AI Has a 1-in-10 Chance of Killing Everyone.
A resignation and a startling public admission have laid bare how deep safety fears run inside one of the world's leading AI labs.
AI labs flooded the market with new models in a single week. Here is what actually changed.
Anthropic, Meta, Google, and OpenAI each released new or updated AI models within days of each other, while Nvidia agreed to buy Hugging Face for $12.9 billion. The pace is exciting and exhausting in equal measure.