11-12 Daily Briefing

AI News Daily · 12 Nov 2025

AI News | Daily Briefing | Tools | Research | Industry | Open Source | AI & Society

Highlights

  • OpenAI quietly launches Polaris Alpha (widely rumoured to be GPT‑5.1) with a 256K context window and knowledge updated through Oct 2024.
  • ByteDance debuts InfinityStar, cutting 5 s / 720p video generation to 58 seconds, while Doubao-Seed-Code targets agentic programming with 256K context + vision.
  • Industry buzz: three chip veterans form Majestic Labs to build AI servers with 1000× capacity; brain–computer interfaces become a Chinese national initiative; Fei‑Fei Li calls spatial intelligence the next frontier and urges building world models.

Product & Platform

  1. Polaris Alpha (OpenAI) — A stealth drop with 256K context and updated knowledge; early testers show it drafting casual games straight from prompts. Community consensus: this is GPT‑5.1. [Source]
    Polaris Alpha UI
    Polaris Alpha abilities
  2. InfinityStar (ByteDance) — A spatiotemporal pyramid model that decouples appearance/motion and leverages knowledge inheritance; renders 5 s, 720p clips in only 58 seconds. [GitHub]
    InfinityStar architecture
    InfinityStar samples
  3. Doubao-Seed-Code — Doubao’s agentic coding model with 256K context plus visual comprehension of UI mockups/hand sketches, paired with new monthly pricing. [Overview]

Research Notes

  1. Sekai dataset — 5,000+ hours of egocentric video from 100+ countries with scene/weather/trajectory labels, acting as a “virtual earth log” for world-model training. [Paper]
  2. FLEX paradigm — Lets LLM agents learn from past successes and failures without retraining, improving math/chemistry tasks by up to 23%. [Paper]
  3. PDE-guided deblurring — Introducing physics-inspired partial differential equations into the network yields visibly sharper restorations with only ~1% extra compute. [Paper]
  4. MultiSim — Runs autonomous-driving scenarios across multiple simulators simultaneously to catch bugs that appear in the real world, not just one engine. [Paper]

Industry / Capital

  1. Majestic Labs — Founded by three silicon legends to pursue AI servers with “thousand-fold” memory capacity, signalling a new hardware race.
  2. Brain–computer interfaces — Officially elevated to a Chinese national strategy; expect more funding + regulation.
  3. Fei‑Fei Li on spatial intelligence — The Turing Award laureate argues the next wave lies in space-aware models and calls for sustained investment in world-model infrastructure.

Community Signals

  • Builders note that agentic programming (Doubao-Seed-Code) + stealth model launches (Polaris) mean longer contexts and better planning are becoming standard expectations.
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