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AI Daily Brief — 8 August 2025

GPT-5 day-two — and it was messy. Altman spent the day in damage control. Underneath the noise, the technical story was strong. China answered with 1M context. OpenAI raised $8.3B at $300B oversubscribed.

Top stories

  • Altman addresses “bumpy” GPT-5 rollout. Reddit AMA: doubling GPT-5 rate limits for ChatGPT Plus (to 160 messages / 3 hours), letting Plus users opt back into GPT-4o, GPT-5 “will seem smarter starting today” because autoswitcher had been broken at launch. Apologised for misleading benchmark chart shown at keynote — “mega chart screwup” caused by employee fatigue, not model hallucination. via TechCrunch
  • “OpenAI priced GPT-5 so low it may spark a price war”. TechCrunch flagged GPT-5’s API pricing — $1.25/M input, $10/M output, $0.125/M cached input — as aggressively below Anthropic and on par with Gemini 2.5 Pro’s base tier. Altman publicly noted “very happy with the pricing we are able to deliver”. via TechCrunch
  • Qwen ships 1M-token context. Alibaba’s Qwen team announced Qwen3-235B-A22B-2507 and Qwen3-30B-A3B-2507 now support ultra-long context up to 1,000,000 tokens — Dual Chunk Attention (DCA) for length extrapolation plus MInference sparse attention. Up to 3x faster inference on near-1M sequences with full vLLM and SGLang compatibility. via Alibaba Qwen
  • GPT-5 model-router backlash crystallises. r/ChatGPT became “ground zero” — 50,000+ users demanded GPT-4o back, top 25 posts on subreddit for three straight days all GPT-5 complaints. Backend logs showed autoswitcher misallocating roughly 37% of Pro requests to nano model, making GPT-5 feel “dumber” than predecessor on long chats and code completion. via Fortune
  • OpenAI $8.3B funding round closes 5x oversubscribed. Tech Startups’ week-ending-Aug-8 roundup confirms OpenAI closed $8.3B at $300B led by Dragoneer ($2.8B) with Blackstone, TPG, T. Rowe Price, a16z, Sequoia, Tiger Global, Thrive and Iconiq. So popular early backers reportedly complained about being squeezed out for new partners. via Tech Startups

Who shipped

OpenAI shipped damage control. Microsoft shipped GPT-5 Smart Mode. Alibaba shipped 1M context.

Open-source pulse

Independent benchmarks confirm GPT-5 hits new SOTA. Artificial Analysis: new Intelligence Index high of 68 (MMLU-Pro, GPQA Diamond, HLE, LiveCodeBench, SciCode, AIME, IFBench). 94.6% AIME 2025, 88.4% GPQA, 74.9% SWE-bench Verified, 88% Aider Polyglot, 84.2% MMMU, 46.2% HealthBench Hard. Swept all categories on LMArena leaderboard. via Artificial Analysis

Money, infra & hardware

Microsoft Copilot rolls out GPT-5 globally with new Smart Mode — web, Windows, Mac and mobile in all markets. Smart Mode unifies fast high-throughput model, deeper GPT-5 thinking model and real-time router. Same release wave shipped Copilot Vision into moto ai on Motorola Razr/Edge and experimental Copilot Mode in Edge. via Microsoft 365 Copilot blog

Quiet corners

Bloomberg: Stargate has not started, funds not yet raised for $500B build-out — formally announced Jan 21. Market uncertainty, US trade policy and shifting AI hardware valuations cited. Recovered momentum in September. Blue J $122M Series D for generative-AI tax research (Oak HC/FT + Sapphire). EU AI Act GPAI obligations now in force one week in.

By the numbers

  • 160 msg/3h — new Plus GPT-5 rate limit
  • 50K+ — Reddit users demanding GPT-4o back
  • 37% — Pro requests misallocated to nano by broken router
  • 1M / 3x — Qwen new context / inference speedup
  • $8.3B / $300B — OpenAI round / valuation
  • 68 — GPT-5 Artificial Analysis Intelligence Index

Compiled by AI Feed’s editor from verified web sources for 8 August 2025.