A shopping cart for AI search, a big open model and a $6.3B security deal

Meta launched Muse Spark Open, an open-weight model, meaning companies can download and run it on their own machines, with 816 billion parameters and a 1 million token context window, built for coding and agent work. Running it locally takes at least 1 terabyte of memory, and it performs best on a Mac Studio with the M5 Ultra chip; it is also available now through several API platforms.

Bluesky expanded its Attie app so people who are not developers can build websites, quizzes, games and polls by describing them, after it first offered only custom feeds. Users can bring their own AI model or use open-weight ones, and what they build can reach Bluesky's audience; Bluesky has 47 million registered users. Support for private data is in alpha testing, with a rollout planned by the end of the year.

The security company Proofpoint agreed to buy the data security company Varonis for about $6.3 billion in cash, or $49.75 a share, a 52% premium to Varonis' close on June 22, before sale rumors began. The deal is expected to close in the first half of 2027, pending shareholder and regulatory approval. Proofpoint's CEO said that as AI spreads through companies, the data it can reach decides both its value and its risk.

The U.S. 10-year Treasury yield fell 10 basis points (0.10 percentage point) on Thursday, for a decline of about 15 basis points over the week, according to LSEG data. CNBC said the global bond sell-off has eased amid lower oil prices and a strong U.S. Treasury auction, after many yields had climbed to their highest in decades on worries about government debt.

Industrial production in the euro zone fell 1.1% in August from a year earlier, against a 0.1% dip expected, and fell 0.5% from July, according to Eurostat. An ING economist said it was the third monthly decline in a row and that industry may not be immune to higher energy prices.