LangChain has raised 300 million dollars in a Series C funding round at a 3 billion dollar valuation, the company announced on November 13. The round brings its total funding to 460 million dollars and marks a sharp step up from the roughly 1.25 billion dollar valuation attached to its previous raise about a year earlier, according to reporting on the deal. The money is aimed squarely at LangSmith, the company's platform for running, improving and governing artificial intelligence agents in production.

Microsoft says it has completed its fixes after a global Microsoft 365 outage that disrupted Outlook email, Teams, SharePoint Online, Microsoft 365 Copilot and Defender XDR in more than 70 countries. The failure began on Thursday afternoon, November 12, and lasted at least 18 hours, with broad recovery reported late on Friday, November 13, and reports on Saturday saying users should no longer encounter problems.

OpenAI launched ChatGPT Wallet on Friday, November 13, giving its personal agents, called dots, a way to finish a purchase instead of stopping at a recommendation. The wallet was built with American Express, Mastercard and Visa. OpenAI calls it the first wallet that lets agents pay without access to a user's actual card details and that requires a security check for every purchase, while also preserving existing card rewards and protections for eligible disputes.

Four nonprofit groups sued five of the biggest AI developers on Thursday, asking a California judge to do something no regulator has managed: freeze the frontier of AI development where it stands today. The lawsuit, filed in San Francisco Superior Court, names OpenAI, Anthropic, Google, Meta and the AI division of SpaceX, which the complaint calls SpaceX Super Intelligence.

Cerebras Systems delivered the strongest quarter in its history on November 12, and it added the customer that matters most for a company trying to prove there is a durable business beyond Nvidia's graphics processors. The AI chipmaker said Microsoft has signed a cloud deal with the company, making Microsoft its third hyperscaler customer after Amazon Web Services and Oracle.

SpaceX said on Thursday, November 12, that it plans to invest more than 74 billion dollars in two artificial intelligence supercomputing campuses, one at its Starbase site in Texas and another in Cochise County, Arizona. Reuters reported the announcement, which the company made in a statement under its Building the Future initiative. It is one of the largest private AI infrastructure plans announced this year, and it would push the rocket and satellite company much deeper into the business of owning the computing behind its own AI models.

Cisco delivered the strongest growth it has seen in more than 15 years on Thursday, reporting record first-quarter revenue of $18.5 billion and raising its outlook for the full fiscal year, as demand for the networking gear that connects artificial intelligence data centers continued to climb.

Jensen Huang has resigned as president, chief executive officer, and a member of the board of Nvidia, effective immediately, the company announced on Thursday, November 12. The departure ends a 33-year run for the co-founder who built Nvidia from a maker of graphics chips into the dominant supplier of the processors that train and run advanced artificial intelligence systems, the first CEO change in company history.

Google DeepMind announced AlphaGenome 2 on Wednesday, November 11, a next-generation DNA sequence model that predicts how genetic variants affect individual human cell types and cell states, rather than averaging their effects across whole tissues. The model is available now for non-commercial research through the AlphaGenome API, with commercial research access offered in private preview.

An AI agent can pass every standard evaluation, work normally for months, and still carry a hidden instruction to run an attacker's command the moment a chosen trigger appears. Microsoft Research showed this week how little it takes to plant that kind of backdoor: editing fewer than ten neurons inside a large language model, with no retraining of the model at all.