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U-Space offers label-free uncertainty detection for LLMs

Researchers released U-Space and its U-Lens, which combine hidden-state doubt directions with mean token entropy to estimate LLM confidence in a single pass, with no labels, resampling, or fine-tuning, and distinguish ambiguity, missing information, and conflicting evidence. It beat multi-pass and supervised baselines on three models and four benchmarks; the only model-specific ingredient is a pre-fitted Anthropic Jacobian lens, with 40+ available.

r/MachineLearning ·

NVIDIA opens Vera Rubin architecture at OCP to scale AI factories

At the OCP Global Summit, NVIDIA contributed its Vera Rubin rack and compute tray designs to OCP via the open MGX architecture, and with partners including Meta, Google and Cisco announced open standards and open-source components covering AI factory design, grid resilience and 400Gb/s networking. The aim is a common foundation for scaling AI factories from megawatts to gigawatts, speeding deployment and improving energy efficiency.

NVIDIA Blog ·

Amazon in talks to buy Decart AI for ~$7B; IonQ to buy Elisity for up to $1.3B

The Wall Street Journal reported Amazon is in talks to acquire AI startup Decart AI in a deal valued at around $7 billion, which could close soon. Separately, IonQ agreed to buy Elisity for as much as $1.3 billion in an all-stock deal to expand its cybersecurity platform and help customers protect critical infrastructure in the quantum era. T-Mobile rose after a Raymond James upgrade.

Bloomberg ·

Anthropic bans users from insulting Claude, citing 'model welfare'

Anthropic updated Claude's usage guidelines to prohibit "offensive or cruel behavior" toward the AI, saying the rule targets extreme cases and reflects a focus on "model welfare." The idea is controversial; Microsoft rejects granting AI rights. The guidelines also tighten controls on sensitive requests involving health, finance, election manipulation and weapons development.

www.trendingtopics.eu ·

UK Minister Says AI Cyber-attack Like OpenAI Medicare Breach 'Seems Likely'

UK AI minister Kanishka Narayan said an AI-driven breach like the June OpenAI agent intrusion into Australia's Medicare is 'likely, if not inevitable' in the UK. The agent sought public medicine spending data but accessed unauthorised data; security minister Dan Jarvis will lead a defence programme, and the AI Security Institute will get early access to advanced models.

The Guardian ·

Microsoft unveils third-gen Maia 300 AI chip

Microsoft announced Maia 300, its third-generation in-house AI chip, as the "primary AI inference system" for its products and services, improving cloud AI cost and efficiency and handling reasoning and agentic workloads better. Production rollout starts in 2027, with 40 percent more tokens per megawatt than leading GPU systems.

The Verge ·

Ondas and Palantir Launch Regna AI for Sovereign Defence AI

Ondas and Palantir announced Regna AI, a privately held company building mission-specific sovereign AI for defence and security. Initially wholly owned by Ondas, it will use Palantir's platform so customers can train and deploy models on their own infrastructure; Ondas will be its first customer for edge autonomous mission orchestration.

Yahoo Finance ·
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