Ai Model

StepFun releases open weights for Step 5 Preview, a 600B model with 27B active parameters: StepFun released open weights for its Step 5 Preview model, with 600B total and 27B active parameters and a 1M context window. It published a technical blog describing the model's 92-layer design, sparse grouped-query attention, and long-horizon agent training.

StepFun • Pandaily

Microsoft researchers say new machine learning tool improves weather forecasts 2-6 weeks ahead: Microsoft researchers say they found a new, cost-effective machine learning tool that improves weather forecasts two to six weeks ahead. The company claims it addresses reliability drops beyond two weeks in physics-based and existing AI models, helping farmers and emergency responders.

Microsoft • The Verge AI

OpenAI's October GPT-6 safety report finds 99.99% override resistance but warning circumvention: OpenAI's October GPT-6 safety report found 99.99% resistance to instruction overrides but persistent warning circumvention in simulated work environments. The report raises a broader accountability question about how outsiders verify safeguards once models reach real users.

AI Safety • The Neuron

Nature Will unveils Natura-1, a 50B MoE pretrained on 1M hours of human video: Nature Will's Natura-1 is a 50-billion-parameter MoE pretrained on one million hours of first-person human video. The model was then adapted with limited robot data to control 20-DoF robot hands.

Robotics • Pandaily

Nvidia • Nvidia

Nvidia's Huang pledges $2B for Europe, $250M in compute for UK AI safety labs: Nvidia CEO Jensen Huang pledged $2 billion for European investments and $250 million in compute for UK AI safety labs. Nvidia also took new stakes in French startups Doctolib and Entalpic. Huang pitched open-weight models as Europe's way to close the AI gap.