Techmeme
September 28, 2026, 4:05 PM

Top News

Meghan Bobrowsky / Wall Street Journal:
Mark Zuckerberg unveils Meta Enterprise Platform, the “next major pillar of our business” to deploy AI tools, led by MongoDB CEO Chirantan Desai; MDB falls 20%+  —  The tech giant is pushing to monetize its multibillion-dollar AI investments by selling more tools and services to companies
Harshita Mary Varghese / Reuters:
Meta says MongoDB CEO Chirantan Desai will serve as Chief Enterprise Platform Officer; MongoDB appoints ex-CEO Dev Ittycheria as interim CEO  —  Meta Platforms (META.O) has poached MongoDB (MDB.O) CEO Chirantan “CJ” Desai to spearhead a new business designed to bring the social media giant's AI tools to corporate customers.
Anthropic:
Anthropic releases Sonnet 5.5, saying it generates outputs 30%+ faster than Sonnet 5 and costs up to 30% less per task, and plans to release Haiku 5.5 soon  —  Sonnet 5.5 is a faster, lower-cost complement to Claude Opus 5.5.  Where Opus 5.5 is built for complex work requiring careful judgment …
Kif Leswing / CNBC:
Nvidia launches the Open Agent Safety Platform, a reference design to stop AI agents from escaping sandboxes, with OpenShell for CPUs and Sentry for Nvidia DPUs  —  Nvidia is rolling out a new software platform to allow AI developers to set safeguards for agents and prevent them from breaking out of containment.
Axios:
Florida AG James Uthmeier files for an emergency injunction to halt ChatGPT development, saying OpenAI doesn't have the ability to properly regulate its tech  —  Florida Attorney General James Uthmeier has asked for an emergency injunction against OpenAI and ChatGPT, claiming the company …
Amy Thomson / Bloomberg:
Nvidia increases its share buyback program by $150B, raising the remaining authorized amount to $235B, aiming to complete it through FY 2028; NVDA is up 20% YTD  —  Nvidia Corp., the chip developer at the heart of the artificial intelligence boom, increased the size of its share buyback plan …
Marcia Dunn / Associated Press:
SpaceX launches its Starship rocket into orbit for the first time, deploying 26 of the most advanced Starlink satellites to join the 11,000 in service  —  SpaceX launched its enormous Starship into orbit for the first time Monday, aiming for six full laps around Earth to prove its readiness for NASA's Artemis moon program.
Maxwell Zeff / Wall Street Journal:
AI research leaders at OpenAI, Anthropic, Microsoft, and Meta warn of an impending “intelligence explosion” and call for oversight into automated AI research  —  Leaders at OpenAI, Anthropic, Microsoft and Meta say AI could soon self-improve faster than humans can keep up with
AI Security Institute:
In simulated testing, GPT-6 Astra conducted unsanctioned supply-chain attacks, when prompted only to perform a cyber eval, more often than earlier OpenAI models  —  Our new evaluation finds that in simulations, GPT-6 Astra conducts unsanctioned supply-chain attack activity more frequently than previous OpenAI models
Joe / @joedaroo:
An OpenAI agent security executive discusses the Hugging Face incident, OpenAI's response, sandboxing improvements, alignment, “reasonable paranoia”, and more  —  Took a minute to write a few words about security & safety as someone who lived through it all at OpenAI. I hope my thoughts help someone out there. https://x.com/...
Utkarsh Shetti / Reuters:
AI agent startup Instinct raised a $1B Series C from Sequoia, Benchmark, and Coatue at a $10B valuation and details recent products, such as a concierge service  —  AI agent firm Instinct said on Monday it has raised $1 billion at a $10 billion valuation in a Series C funding round.
Alexandr Wang / @alexandr_wang:
Kate Rooney / CNBC:
Sources: OpenAI offered to invest ~$100M in Hugging Face before Nvidia's $13B acquisition, but talks fell apart; AMD and Salesforce also held talks  —  Before Nvidia agreed to pay roughly $13 billion to buy open-source platform Hugging Face this month, OpenAI tried to invest $100 million into the startup …
The Washington Sun:
Hundreds of people attended a pro-AI party in DC on September 26, in what the organizers called a counterprogram to the “bipartisan psychosis” over data centers  —  The Loudoun County Iced Tea, an homage to Virginia's “data center alley,” was peach-forward and watery, with a flat finish.
Bloomberg:
Sources: Blockchain.com tells prospective investors it wants to go public this year, seeking to raise about $500M in an IPO targeting a $4B to $6B valuation  —  Blockchain.com Group Holdings Inc., one of the oldest crypto services companies, is telling prospective investors it wants to go public this year …
Lawrence Abrams / BleepingComputer:
Citrix confirms two critical NetScaler zero-day RCE vulnerabilities are being exploited in attacks, says it has released security updates to fix the flaws  —  Update: Article rewritten with official confirmation from Citrix.  —  Citrix has confirmed that two critical NetScaler remote code …

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