Nvidia launched an Open Agent Safety Platform to spread its open-source agent-security technology in response to rogue AI agent incidents, while OpenAI did not publicly join Nvidia’s industry consortium despite expressing support. The effort relies on Nvidia Sentry running on BlueField-4 data processing units. As a result, the initiative is partly hardware-bound and shipped as an easy update on Nvidia’s latest hardware rather than a fully open, chip-agnostic rollout, with OpenAI instead emphasizing its own agent security work.
Nebius opened applications for its 2026 Physical AI Awards, run with NVIDIA, to back startups with physical AI products and traction. The program offers five $150,000 compute-credit prizes per category, with applications closing on October 25, 2026. Winners receive the compute credits plus mentorship and promotion, with finalists and winners announced in mid-November 2026.
NVIDIA released Kumo Tabular, an open foundation model for tabular classification and regression that predicts labels for new rows in a single forward pass without training, tuning, or feature engineering. It ranks first on TabArena overall with an ELO of 1950. The release makes a pretrained tabular-Transformer available on Hugging Face under OpenMDW-1.1, aimed at faster accuracy-efficiency tradeoffs than prior tabular approaches.
SiMa.ai raised a $150M Series C co-led by Fidelity and Amplify at a $1.45B valuation, pitching its on-device chips and open-source Palette Neat software against Nvidia for physical robots, drones, and cars. The company says its next chip arrives in the first half of 2028, after revenue quadrupled from 2024 to 2025. The funding will be used mainly to scale Palette Neat and develop the next hardware generation, but the switch away from Nvidia depends on future 2028 performance and customer adoption.
Nvidia’s board approved an additional $150 billion share buyback authorization for its existing program. The plan raises Nvidia’s potential total repurchases to up to $235 billion through the end of fiscal year 2028. The company can now buy back shares at a larger scale, signaling higher capital returns while its stock growth momentum has eased.
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