AI Daily Brief · Oct 15, 2026 | Eight states sue OpenAI as the FTC reportedly subpoenas two labs; TSMC sets records while Korea's market halts

Regulators turned their attention to OpenAI and Anthropic at the same time over the past 24 hours: eight US states sued OpenAI, and Axios reported that the FTC has sent civil investigative demands to both companies. Markets split sharply, with TSMC reporting a record third quarter on the same day a chip-stock selloff tripped circuit breakers on both of Korea’s exchanges. StepFun, Ant Group and others released open models in quick succession, and DeepSeek promised a week’s worth of credits after an outage of nearly five hours. Meanwhile, Amazon tightened access for third-party AI shopping agents, a new filing landed in OpenAI’s dispute with Apple, and accounts of Anthropic’s IPO timing still conflict.

Today’s highlights

• Attorneys general in eight states each sued OpenAI, alleging ChatGPT’s design pushed children toward self-harm and encouraged violence; the FTC reportedly sent civil investigative demands to OpenAI and Anthropic the same day.
• TSMC’s Q3 revenue hit $46.72 billion, up 41.2% year over year and above the top of guidance; the same day the KOSPI plunged 7.57%, and it and the KOSDAQ both triggered circuit breakers.
• StepFun opened the weights of Step 5 Preview and Ant Group open-sourced Ling-3.1-flash; DeepSeek’s API was down for nearly five hours, and it is refunding seven days of spend as credits.
• Amazon blocked third-party AI shopping agents, prompting Elon Musk to muse about building an Amazon competitor.
• In its legal fight with Apple, OpenAI says a former employee took more than 100 confidential files to Apple; Apple denies it.

1. OpenAI and Anthropic both draw regulators’ fire: eight states sue OpenAI, and the FTC subpoenas both

Eight-state lawsuits (Verified): On Wednesday, Oct 14 (US time), the attorneys general of Arkansas, Arizona, Idaho, Montana, Iowa, Kansas, Nebraska and West Virginia each sued OpenAI in their own state courts under state consumer-protection laws. They allege that ChatGPT is designed to be excessively sycophantic, steering children toward self-harm, encouraging violence and giving dangerous advice, while OpenAI told parents the product was safe. They are seeking court-ordered changes to how ChatGPT interacts with minors, disgorgement of related profits and fines, but no specific damages figure; the attorneys general say more states may join. A day earlier, on Oct 13, a class action filed in federal court in San Francisco accused OpenAI of illegally collecting children’s data.

FTC demands [Media exclusive; not publicly confirmed by the FTC or either company]: Citing people familiar with the matter, Axios reported that on Oct 14 the FTC sent civil investigative demands to OpenAI and Anthropic, each running more than 50 pages. They ask for documents on safety incidents, safeguards, marketing materials and privacy policies, and the agency plans to depose executives. Reuters, following the story, added that METR has also been subpoenaed. Reuters reported in late September that the FTC was preparing an industry-wide probe of AI labs.

Reactions: @unusual_whales’s news flash, at 4,262 likes and 209K views, was the most-engaged post on the story. One reply noted this is not great news for a company that wants to go public.

Sources: @unusual_whales · @Raul_Labrador (Idaho AG) · @coinbureau (FTC) · Arizona AG release · NBC News · Politico · Axios · CBS News

2. Boom and bust: TSMC posts a record quarter while a chip rout halts trading in Korea

TSMC Q3 (reported Oct 15, official figures): Revenue was NT$1.494 trillion, up 50.9% year over year, or $46.72 billion in US dollar terms, up 41.2% year over year and 16.2% quarter over quarter, above the top of guidance. Net income was NT$763.06 billion, up 68.7%, and EPS was NT$29.43 ($4.60 per ADR). Gross margin was 66.4%, down 1.3 points from the prior quarter, which the company attributed to the early ramp of 2nm; operating margin was 58.7%. Q4 guidance calls for revenue of $52.3–54.3 billion and a gross margin of 65%–67%.

On the earnings call, Chairman C.C. Wei confirmed that a team has been sent to Texas to evaluate expansion and that TSMC is in talks with a customer about whether it could use Elon Musk’s Terafab. TSMC says it must operate any fab itself and has reached no agreement. According to @aleabitoreddit’s account of the analyst Q&A, management still sees demand outstripping supply and thinks AI accelerator revenue growth could exceed its earlier forecast of more than 50% a year through 2029. [Secondhand account; defer to the earnings-call transcript]

Korean stocks (Verified): The KOSPI closed at 5,554.22, down 454.59 points (-7.57%), after touching 5,450.81 intraday, its seventh straight losing session. A sell-side sidecar kicked in seven minutes after the open, and a level-one circuit breaker halted trading for 20 minutes at 12:38. The KOSDAQ (-7.65%) was halted too, the first time both markets have tripped circuit breakers on the same day since July 29. SK Hynix fell 11.35% and Samsung Electronics 9.91%. Korean media cited doubts about the sustainability of AI spending, rate-hike fears after US September CPI rose 0.6% month over month, credit risk at CoreWeave, and competition from Chinese memory chipmakers.

Reactions: Musk posted that China will be producing a lot of RAM by 2028 (10.4K likes, 2.38M views).

Sources: @wallstengine · @StockSavvyShay · @cb_doge · @aleabitoreddit · @KobeissiLetter (5,734 likes) · @elonmusk · TSMC release · TSMC Q3 results · AP · Yonhap · MoneyToday

3. A wave of open models; DeepSeek refunds a week of usage after a five-hour outage

StepFun opens Step 5 Preview (Oct 15, 21:00 Beijing time): A sparse MoE with 600B total and 27B active parameters per token, a 1M-token context window and text-plus-image input, aimed at long-horizon agent work. BF16 and FP8 weights are on Hugging Face and ModelScope under the StepFun Model License 1.0, which is Apache-2.0-like with attribution and commercial-use conditions; the API has been available since Sept 20. Nvidia says it reaches nearly 8,000 tokens per second per GPU on GB300 with NVFP4, and vLLM supported it from day one.

Ant Group open-sources Ling-3.1-flash (Oct 14, 23:19): Roughly 560B parameters with about 25B active per token and a 1M-token context, built to turn rough requirements into web pages, mobile UIs and interactive prototypes. The launch post drew 1,006 likes and 700K views.

Ultramarine 1 Flash (Oct 15, 00:02) [Self-reported, not independently verified]: Released by Paper Instruments, a small San Francisco company, which says it performs close to Claude Fable 5 at one-sixtieth the price and was post-trained by a five-person team for about $300,000. The post drew 7,014 likes and 1.35M views. Note that although the post calls it open source, it is API-only for now, weights are promised in two weeks, and the performance comparison is the company’s own.

DeepSeek: The DeepSeek API was down for nearly five hours on Oct 15, from 8:11 to 13:04 Beijing time. DeepSeek staffer @tianyi posted an apology: every account will automatically receive credits equal to its full spend over the seven days from Oct 8 to Oct 14 (1,085 likes). @teortaxesTex said some accounts had spent $500,000 to $1 million in a week [One-sided claim].

Also: OpenCode is offering DeepSeek V4.1 Flash for free (15:35); at 14.7K likes and 1.36M views it was one of the most popular developer posts of the past 24 hours. [Unverified] @NVIDIAAI said so many models shipped this week that it has one coming too (3,113 likes), without saying what or when.

Sources: @StepFun_ai · @NVIDIAAI (Step 5) · @vllm_project · @AntLingAGI · @bertgodel · @tianyi · @teortaxesTex · @opencode · @NVIDIAAI (teaser) · Step 5 Preview on Hugging Face · StepFun launch page · Ultramarine · DeepSeek status page · Yicai

4. Amazon shuts out third-party AI shopping agents; Musk muses about an Amazon rival

Amazon is tightening access for third-party AI agents. A user posted a screenshot in which Grok Bot, while placing an order, was told that continued access by an unauthorized AI agent violates Amazon’s terms of use. According to India Today, citing GeekWire, Amazon has confirmed it blocked Meta’s Muse agent because Meta gave no advance notice, the agent did not identify itself, and it was suspected of storing user credentials.

Reactions: Musk posted three times. He told users to have Grok Bot buy from other sites with better prices (10.1K likes, 14.17M views); said SpaceX would cover the full cost if Grok Bot ever bought the wrong item or leaked a card number, which he said has not happened (9,058 likes); and, replying in the evening to a post saying it was time to build X Shop, wrote that maybe we should build an Amazon competitor 🤔 (41.2K likes, the most-liked AI-related post of the past 24 hours). [Offhand remark by Musk; no concrete plans]

Sources: @elonmusk 1 · @elonmusk 2 · @elonmusk 3 · @XFreeze · India Today

5. OpenAI’s secrecy battles: a filing says an ex-employee took 100+ files to Apple; WSJ says OpenAI trains staff against honey traps

New filing in Apple v. OpenAI [Allegation by one party to the lawsuit]: On Oct 14 (US time), in Apple’s trade-secrets suit against it, OpenAI filed papers accusing a former employee who went back to Apple of sending more than 100 highly confidential files to a personal account on June 2, including images of unreleased devices, engineering data and supplier information. OpenAI says the same person had earlier given Apple executives a presentation on unreleased OpenAI products. Apple denies this and says an internal search found no evidence. @ZackKorman criticized OpenAI for discovering the files were gone only months later, while digging up evidence for the lawsuit (784 likes).

Counterintelligence training [Media report]: The WSJ reports that OpenAI’s internal training warns staff that competitors and state actors may use seduction, cash or eavesdropping to extract information, with examples such as a “parent” at a playground asking about their work. Anthropic and Google have sent employees similar warnings. The backdrop is the Oct 9 FBI arrest of an OpenAI engineer for planting a listening device at the company. WSJ reporter @erinkwoo’s post drew 1,038 likes and 480K views; on X the story was mostly treated as a joke, with @rawsalerts’s mocking post at 3,711 likes.

Sources: @AndrewCurran_ · @ZackKorman · @erinkwoo (WSJ) · @rawsalerts · The Guardian · The Register · WSJ

6. Anthropic on the eve of an IPO: revenue expectations, timing and how the market reads it

Year-end revenue: Reuters reports that analysts who have met with Anthropic executives estimate its annualized revenue could reach $110 billion by year-end; Reuters also put second-quarter revenue at $11.6 billion. @kimmonismus described the $110 billion figure as Anthropic’s own forecast, which conflicts with Reuters; we go with Reuters.

Conflicting IPO timelines [Media report, not confirmed by the company]: @kimmonismus, citing Bloomberg, said Anthropic was free-cash-flow positive in Q3 and could list before Thanksgiving; Reuters had earlier reported that the IPO will most likely slip until after the November midterm elections.

Reactions: Some read the revenue as a miss. @jukan05 argued demand hasn’t disappeared but shifted to OpenAI, so the two should be looked at together (1,139 likes). Chamath said Anthropic should find a market-clearing price and list quickly; he had earlier put its value at around $1 trillion (1,157 likes).

Two more items: [Unverified] Claude Fable 5.5: Theo posted that if Anthropic really ships Fable 5.5 today, it might be over (4,031 likes), but as of 22:13 Beijing time on Oct 15 there was no official release, and the newest model in the official docs was still Fable 5.1. On the official side, Anthropic opened applications for two new fellowships, one in science and engineering and one in conceptual reasoning covering philosophy, cognitive science, economics, policy and law. Fellows spend four months at Anthropic starting January 2027 helping Claude learn to reason in these fields; applications close Oct 28 (1,713 likes).

Sources: @kimmonismus 1 · @kimmonismus 2 · @jukan05 · @chamath · @theo · @AnthropicAI · Reuters via Investing.com

In brief

• Codex’s 28-day improvement plan, day 10: usage limits reset for everyone: After Codex lead Tibo went more than a day without posting, users jokingly sent out a search party; he then posted that rumors of his reset button going missing had been exaggerated (14.9K likes, 1.21M views). Some developers also complained that the ChatGPT desktop app is slow and laggy (@thsottiaux · @davis7).
• Apple Intelligence coming to China in December [Media report]: Bloomberg’s Mark Gurman reports the first features will arrive with iOS 27.3 in December, not including the new Siri AI; The Paper separately reported Tim Cook as saying approval has been granted (@markgurman · MacRumors).
• Google Research launches Deep Review: An agent-based tool that pokes holes in papers, design docs and proposals; it analyzed more than 15,000 papers during its pilot and is now open worldwide, free twice a week, running on Gemini 4 Argon (@NewsFromGoogle · Google Research blog).
• Figma Config India: Figma announced Code Layers (bringing website code onto the canvas), Specs (markdown context containers on the canvas) and Guidelines, all in public beta, plus Code Sources in closed beta (@figma · @zoink).
• SemiAnalysis says Google’s first TPUv7 FP8 inference submission delivers 1.67x the performance per dollar of GB300 NVL72 (FP4) (@SemiAnalysis_).
• Mistral and CERN team up to train a “large physics model” on billions of simulated collisions (@MistralAI).
• Nous Research ships Hermes Agent v0.22.0, focused on simpler onboarding and one-click connections to apps (@NousResearch, 1,849 likes).
• HeyGen Voice claims the top spot on Artificial Analysis’s speech leaderboard and adapts dubbing to the acoustics of each video scene (@HeyGen).
• Google SynthID named one of TIME’s Best Inventions of 2026; it has watermarked more than 180 billion images and videos (@GoogleDeepMind).
• Claude Code gets fast mode, per a third-party observation (@kimmonismus).
• Musk: truth-seeking is the most important thing for AI/SI safety, citing the scene in 2001: A Space Odyssey where HAL is told to lie (6,176 likes) (@elonmusk).
• Old AI stories go viral: Jensen Huang recounting how he found TSMC’s number in the Yellow Pages and cold-called Morris Chang (@dnapway, 10.8K likes, 2.51M views), and Musk posting a 2016 photo of the delivery of Nvidia’s first DGX-1, captioned as OpenAI’s early days (12.3K likes) (@dnapway · @elonmusk).
• AI and the games industry: Ethan Mollick says GTA 6 will be the last masterpiece of the all-human era; big studios will use AI to speed up, while indie developers get held back by anti-AI players (@emollick).
• The small-model self-replication debate continues: David Sacks posted a long rebuttal of Anthropic’s report on small-model self-replication, calling it a fear factory (1,599 likes) (@DavidSacks).

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About this column and how we verify

AI Daily Brief is compiled with AI assistance; this issue was produced with help from Grok Bot. It covers Oct 14, 22:13 to Oct 15, 22:13, Beijing time (UTC+8), 2026.

• Every post checked individually: Each X post cited here was opened and checked to confirm it exists, has the stated author and falls within this issue’s time window, and every one was cross-checked a second time for author and posting time through the X API. Like and view counts are as of verification and may have changed since.
• X News summaries are leads only: X News story summaries are generated by Grok and used only to find leads. Facts rest on the original posts, official pages and news reports; where a summary conflicts with a primary source, the primary source wins.
• Items about Grok Bot: Because this column is compiled with Grok Bot’s help, story 4 (Amazon and third-party AI shopping agents) is included on the basis of engagement and verification.
• What the labels mean:
  • (Verified): Cross-checked against official pages or news reports.
  • [Unverified]: A rumor, speculation or teaser with no official or primary source.
  • [Media report] / [Media exclusive]: Comes from news reporting; the note says which parties have not confirmed it.
  • [Self-reported, not independently verified]: A company’s own claims or comparisons, not independently checked.
  • [One-sided claim] / [Allegation by one party to the lawsuit]: Only one side’s account; the other side denies it or has not responded.
  • [Secondhand account; defer to the earnings-call transcript]: Relayed secondhand; the original record is authoritative.
  • [Offhand remark by Musk; no concrete plans]: A personal comment, not evidence of an actual plan.