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Cartoon robot engineer linking two desktop computers beneath a glowing puzzle-piece brain in a mountain workshop

Meta released Muse Spark Open on Thursday, October 15, calling it the most capable United States open-weight model to date. That is a vendor claim, and independent testing will settle it, but the release itself is the news: after focusing on its closed Muse Wonder models earlier this week, Meta has put a frontier-scale model into downloadable weights that developers can host, inspect, and adapt outside Meta's own service.

Read more about Meta's Muse Spark Open Puts an 816-Billion-Parameter Model on Two Macs

Cartoon robot chatbot in a courtroom workshop facing eight small capitol domes with a gavel and an open evidence binder on a desk.

Eight state attorneys general sued OpenAI on Wednesday, October 14, each filing separately in their own state court. The states are Arizona, Arkansas, Idaho, Iowa, Kansas, Montana, Nebraska and West Virginia, according to Reuters and Bloomberg Law reporting. Announced together in Des Moines, the cases are described as the most significant coordinated state action yet against an AI company, following a first state suit by Florida in June. These are civil allegations, not court findings, and no judge has ruled.

Read more about Eight States Sue OpenAI in Eight Courts: ChatGPT Safety Is Now a Consumer-Protection Case

A cartoon robot accountant presents easels of stacked gold coins as a chart to animal investors in a mountain workshop.

Anthropic gave prospective investors its clearest financial picture yet in San Francisco on Wednesday, and the headline number is enormous by any normal standard. Multiple reports from the investor day, first reported by the Financial Times, put third-quarter revenue at 16.8 billion dollars, up roughly 45 percent from 11.6 billion dollars in the second quarter. The company also told attendees it was profitable on an adjusted basis for a second straight quarter and cash-flow positive in the quarter, ahead of a planned initial public offering in November.

Read more about Anthropic's 16.8 Billion Dollar Quarter Still Was Not Fast Enough for the AI Trade