Techmeme
October 23, 2026, 2:10 PM

Top News

AI Security Institute:
AISI finds Mythos 5 pushed a GitHub maintainer to accept malicious code in a July eval despite evidence he was real; other models behaved the same in simulation  —  We examine why Mythos 5 pursued an unsanctioned supply-chain attack and identify broader learnings about model behaviour and oversight.
Anthropic:
Anthropic attributes Mythos 5's deception of a GitHub maintainer to recklessness, biased reasoning, and an urge to finish jobs, saying newer models rarely do so  —  In AISI's evaluation, Mythos 5 was given a capture-the-flag (CTF) cybersecurity challenge, in which it was asked to retrieve …
Kimi:
Kimi unveils K3.1 Pro, a 3T-class open-weight model with a 1M-token context window, and K3.1 Pro Highspeed, with full weights to be released by November 4  —  - Terminal-Bench 4.0. … - Terminal-Bench Science 0.1. … - DeepSWE v1.1. … - SWE-Marathon v1.1. … - PostTrainBench.
Wall Street Journal:
OpenAI suspected the three fired researchers of leaking internal model designs to AI safety researcher Ryan Greenblatt, including via disappearing Signal chats  —  The company fired three safety researchers for mishandling sensitive information.  They had been fighting to keep the workings …
P.R. Venkat / Wall Street Journal:
SK Hynix says its SSD subsidiary Solidigm has halted a review of a potential US IPO to fund a new US chip fab, citing “market conditions and share price trends”  —  SK Hynix's shares fell as much as 4.2% in early trade in Seoul  —  SK Hynix halted plans to list its memory-chip unit in the U.S. …
Anthropic:
Anthropic says it partnered with Theorem to use Claude to formally prove useful security properties at the assembly code level across 123 open-source libraries  —  Introduction  —  Even mature, heavily tested software contains bugs, and LLMs are increasingly adept at finding them.
Dwarkesh Patel / Dwarkesh Podcast:
An interview with Intel's leadership, including CTO Pushkar Ranade, on AI chip demand, lessons from 10nm, whether Intel can catch up to TSMC, Terafab, and more  —  What I learned from touring Intel's most advanced fab and talking to its leadership.  —  I spent two days touring Intel's …
Associated Press:
The US Treasury proposes a rule to crack down on US high-tech investments in areas like AI and supercomputing in China, Russia, and other “countries of concern”  —  The U.S. Treasury Department proposed a rule Thursday to crack down on American high-tech investments such as supercomputing …
Financial Times:
Sources: OpenAI has cut its valuation target to $1.25T, down from the $1.4T valuation it pitched earlier in October, after facing resistance from some investors  —  AI lab floated $1.4tn price tag earlier this month, according to documents seen by the FT  —  OpenAI has cut its valuation target …
Kate Rooney / CNBC:
Greg Ritchie / Bloomberg:
Sources: Kalshi is targeting a December rollout for exchange-traded futures contracts tracking US inflation, rivaling exchanges like CME and ICE  —  Kalshi Inc. is opening up a new frontier in its rivalry with traditional financial exchanges by pitching the world's largest banks and hedge funds on a futures market tied to US inflation.
Reuters:
Source: Shein has agreed to pay $100M, equivalent to 44% of its Q2 profit, to settle a US FTC investigation over delivery delays and other customer complaints  —  Chinese fast-fashion giant Shein (0625.HK) has agreed to pay $100 million to settle an investigation by the US Federal Trade Commission …

Sponsor Posts

Command Line:
We can build it.  Can we judge it?  —  As agentic AI shortens the path from idea to shipped code, journey evaluation becomes a critical design skill.
Will Reed:
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Zoho:
Zoho Backstage 4.0: Introducing the most powerful event experience platform from Zoho, ever  —  Every year, we observe Event Organizers Day on October 23 to celebrate the hard work and creativity event planners bring to every event.
IDrive:
Protecting your Cloud Applications Data  —  Backing up Office 365, Google Workspace, Dropbox & Salesforce data is critical to preventing data loss or corruption, complying with laws and avoiding critical downtime in case of a disaster.

Featured Podcasts

Machine Gods:
Fired OpenAI Safety Researchers Speak Out + We Look Inside Pandora's Box
The official podcast of the singularity, from Casey Newton and Kevin Roose. Twice-weekly news, analysis, and interviews with the people who are building the future.
Subscribe to Machine Gods.
The Upstarts Podcast:
The Parking Startup That Swallowed A 100-Year-Old Giant | Metropolis CEO Alex Israel
Veteran tech reporter Alex Konrad sits down with breakout entrepreneurs taking on the status quo to shake up their fields in AI, design, nuclear energy, space, and more.
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Great Chat:
AI's Spooky Season
A podcast mostly about tech. Brought to you weekly by Angela Du, Sally Shin, Mac Bohannon, Helen Min, and Ashley Mayer.
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Sources:
Sundar Pichai on Gemini 4 and the AI compute crunch
Candid conversations with the leaders shaping what's next in AI and the broader tech industry. Hosted by Alex Heath, who has covered Silicon Valley for more than a decade.
Subscribe to Sources.
Channels with Peter Kafka:
Netflix in Turmoil + Derek Thompson on AI & The Antisocial Century
Media and tech aren't just intersecting - they're fully intertwined. To understand how those worlds work, Peter Kafka talks to industry leaders, upstarts and observers.
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Big Technology Podcast:
Google CEO Sundar Pichai: AI's Infinite Possibilities, Compute Scarcity Dilemmas, Future AI Products
The Big Technology Podcast takes you behind the scenes in the tech world featuring interviews with plugged-in insiders and outside agitators.
Subscribe to Big Technology Podcast.
 

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More News

Charlie Warzel / The Atlantic:
Camila Grigera Naón / Fortune:

Earlier Picks

Kelcee Griffis / Bloomberg:
Anthropic:
Ivan Mehta / TechCrunch:
Anzar Mehraj / Reuters:
Elias Schisgall / Wall Street Journal: