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AI Daily Brief — 18 September 2025

A heavy news Thursday across three axes: infrastructure (NVIDIA+Intel), open-source AI (Magistral 1.2), science (DeepSeek-R1 Nature cover + Delphi-2M). Plus governance: Diella parliament debut, Canadian deepfake paper.

Top stories

  • NVIDIA invests $5B in Intel; co-design x86 CPUs + RTX-chiplet PC SoCs. NVIDIA buys $5B Intel common stock at $23.28/share. Will co-develop custom x86 data-center CPUs (integrated into NVIDIA AI platforms) plus PC SoCs with embedded RTX GPU chiplets. Intel shares jumped ~30%. Lands one month after US government took 10% Intel stake. via NVIDIA
  • Mistral ships Magistral 1.2 — multimodal reasoning, vision encoder added. Magistral Medium 1.2 (magistral-medium-2509) and Magistral Small 1.2 (magistral-small-2509, 24B, Apache 2.0) on HF. Both add vision encoder for image reasoning, keep 128k context, gain [THINK]/[/THINK] tokens. AIME24 = 91.82% Medium (vs 73.59% v1.0, edging DeepSeek-R1’s 91.40%). Small runs on single RTX 4090 or 32 GB MacBook. via Mistral
  • DeepSeek-R1 paper on cover of Nature — first mainstream LLM to pass peer review. Nature Vol. 645, Issue 8081 (18 Sep 2025) — “Self-help: reinforcement learning teaches AI model to improve itself”. Liang Wenfeng corresponding author. R1 trained on 64×8 H800 chips over ~4 days for $294,000 total, with no human-labeled reasoning data — pure RL with verifiable rewards. via Nature
  • Albania’s AI “minister” Diella addresses parliament; opposition walks out. PM Rama played video address from Diella at opening session. Female-avatar (Zadrimë costume, voiced by actress Anila Bisha) said “I’m not here to replace people, but to help them”. Tasked with vetting public-procurement decisions. Opposition MPs erupted in protest; session lasted only 25 minutes. via Balkan Insight
  • Delphi-2M lands in Nature — GPT-style transformer predicts 1,256 disease trajectories. EMBL / German Cancer Research Centre / U Copenhagen team. Modified GPT trained on 0.4M UK Biobank participants, externally validated on 1.9M Danish records. Predicts trajectories across 1,256 ICD-10 level-3 diseases. Can sample synthetic 20-year health trajectories. via Nature

Who shipped

NVIDIA+Intel shipped a partnership. Mistral shipped Magistral 1.2. DeepSeek shipped a Nature cover. Delphi shipped a disease model.

Open-source pulse

Meta Connect 2025 day 2 — Wearables Device Access Toolkit + Horizon world-gen. CTO Bosworth keynote: Spatial Studio 2.0 + Spatial SDK updates with AI assistance; forthcoming generative tools to create entire Horizon worlds and bipedal NPCs from text prompts. via Meta Devs

Money, infra & hardware

Canadian Digital Regulators Forum publishes synthetic-media paper — Competition Bureau, Privacy Commissioner, CRTC, Copyright Board released joint paper “Synthetic media in the digital landscape” surveying global regulatory landscape for AI-generated content and deepfakes. Humanoid (UK) unveils HMND 01 Alpha industrial robot — dual-armed mobile manipulator pitched as UK’s first humanoid built for industrial deployment, developed in seven months.

Quiet corners

OpenAI “Why Language Models Hallucinate” paper widely covered as inevitability proof — by Adam Tauman Kalai, Edwin Zhang, Ofir Nachum + Georgia Tech’s Santosh Vempala (originally posted Sep 4). Notes o1 hallucinates 16% on person-queries vs o3 33% and o4-mini 48%; proposed fix (rewarding “I don’t know”) would push ~30% of answers into abstentions.

By the numbers

  • $5B / $23.28 / ~30% — NVIDIA Intel stake / share price / Intel surge
  • 91.82% vs 91.40% — Magistral Medium 1.2 vs DeepSeek-R1 on AIME24
  • $294,000 / 64×8 H800s / ~4 days — DeepSeek-R1 training cost / GPUs / time
  • 25 min / 1st — Diella session length / cabinet AI minister globally
  • 1,256 / 0.4M + 1.9M — Delphi-2M ICD-10 diseases / training + validation populations

Compiled by AI Feed’s editor from verified web sources for 18 September 2025.