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AI Daily Brief — 1 December 2025

Monday compressed three structural shifts. DeepSeek dropped V3.2 + V3.2-Speciale under MIT on Hugging Face + GitHub: flagship V3.2 (685B params) + reasoning-tuned Speciale. Speciale: AIME 96.0% (vs GPT-5-High 94.6%, Gemini 3 Pro 95.0%); gold-medal-equivalent IMO 2025 (35/42); 2nd at ICPC World Finals. DeepSeek Sparse Attention (DSA) paper accompanies — reduces attention complexity to near-linear O(kL) for long context by indexing only high-value tokens. Sparse kernels in FlashMLA. Only architectural change vs V3.1-Terminus, trained via continued pre-training. Independent analyses: V3.2-Speciale matches GPT-5 / Gemini 3 at ~10× lower API cost. Cyber Monday all-time-record $14.25B online (+7.1% YoY) (Adobe) — beat $14.2B projection, biggest e-commerce day in history; $16M/min peak 8-10pm; BNPL crossed $1B in single day for first time ever ($1.03B). Gen-AI referral traffic to US retail +670% YoY on Cyber Monday alone; season-to-date (Nov 1 – Dec 1) AI traffic +760%. Video games + appliances + electronics + toys + personal care top AI-shopped categories. TSMC starts 2nm (N2) HVM in Taiwan — every major AI accelerator design (NVIDIA, AMD, Apple, custom ASICs) will queue for it in 2026; TSMC holds ~72% leading-edge foundry share at 3nm and below. OpenAI rolls out “Your Year with ChatGPT” — opt-in Wrapped-style recap with themes + stats + generated “vibe poem” from 2025 chats; Free/Plus/Pro US/UK/CA/AU/NZ + Go/Plus/Pro India; excludes Business/Enterprise/Edu. Microsoft 365 Copilot Business GA $21/seat (≤300 seats) in Partner Center.

Top stories

  • DeepSeek V3.2 + V3.2-Speciale open under MIT. 685B params. AIME 96.0% (vs GPT-5-High 94.6%, Gemini 3 Pro 95.0%), IMO gold 35/42, ICPC 2nd. via Hugging Face
  • DSA (DeepSeek Sparse Attention) paper. Near-linear O(kL) attention by indexing high-value tokens. Sparse kernels in FlashMLA. Only architectural change vs V3.1-Terminus. via arXiv 2512.02556
  • DeepSeek-V3.2-Exp open inference recipe. Companion experimental release on GitHub with code + config for local runs + DSA reproductions. via GitHub
  • Cyber Monday all-time record $14.25B (+7.1%). Adobe. $16M/min peak 8-10pm. BNPL crossed $1B in single day for first time ever ($1.03B). via Adobe
  • Gen-AI retail traffic +670% YoY Cyber Monday; +760% season-to-date. Top categories: video games + appliances + electronics + toys + personal care. via Adobe
  • TSMC begins 2nm (N2) HVM in Taiwan. NVIDIA + AMD + Apple + custom ASICs queue for 2026. TSMC ~72% leading-edge foundry share at 3nm+ below. via Tom’s Hardware
  • OpenAI “Your Year with ChatGPT” recap. Opt-in themes + stats + “vibe poem” from 2025 chats. Free/Plus/Pro US/UK/CA/AU/NZ + Go/Plus/Pro India. Excludes Business/Enterprise/Edu. via Windows Central
  • Microsoft 365 Copilot Business GA $21/seat. ≤300 seats. Work-grounded chat + in-app Copilot + agent building for SMBs at lower price than Enterprise tier. via Microsoft Learn
  • V3.2-Speciale matches GPT-5/Gemini 3 at ~10× lower cost — China benchmark shock. Intensifies open-source-China cost pressure on Western frontier labs heading into Q4 close. via Introl
  • Cyber Monday stress-tests AI-mediated commerce stack. ChatGPT shopping + Perplexity + Gemini agents biggest production-scale stress test of 2025 at $16M/min peaks. via DC360

Who shipped

DeepSeek shipped V3.2 + V3.2-Speciale + DSA. OpenAI shipped Year-with-ChatGPT. Microsoft shipped Copilot Business GA. TSMC started 2nm HVM. Anthropic, Google, Meta, xAI, Alibaba quiet on launches.

Open-source pulse

V3.2-Speciale resets open-source reasoning ceiling overnight — first open model to match Western closed-frontier on IMO/Putnam/ICPC. DSA architectural innovation reproducible by community.

Money, infra & hardware

Cyber Monday’s $14.25B record + 670% AI traffic spike + TSMC N2 HVM = the heaviest single-day AI economics chord of November-December. Microsoft Copilot Business $21 + 300-seat cap targets SMB share against ChatGPT Business.

Quiet corners

OpenAI’s Year-with-ChatGPT recap is the quiet UX moment — first major Wrapped-style for LLM usage; exclude-by-default for enterprise SKUs reflects privacy posture maturity.

By the numbers

  • 685B / 96.0% / 35/42 / 2nd — V3.2 params / AIME / IMO 2025 / ICPC World Finals
  • $14.25B / +7.1% / $16M/min / $1.03B — Cyber Monday record / YoY / peak rate / BNPL single-day
  • +670% / +760% — AI retail traffic Cyber Monday / season-to-date
  • ~10× — V3.2-Speciale API cost advantage over GPT-5
  • $21 / ≤300 seats — Microsoft Copilot Business GA pricing
  • Most-mentioned company: DeepSeek
  • Quietest segment: US frontier-lab launches

Compiled by AI Feed’s editor from verified web sources for 1 December 2025.