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Mistral AI enables user data training by default across Vibe and API, opt-out required

Mistral AI's consumer-facing Vibe product and its Studio/API services now use customer conversations, documents, and other input/output data for model training unless users actively opt out. Enterprise customers on Vibe are opted out by default, with admins controlling the toggle, while individual users must manually disable data sharing through account settings or an admin panel.

Developer builds B200 attention CUDA kernel reaching 94.4% of FlashAttention-4 speed

A technical blog post walks through building a custom attention kernel for Nvidia's Blackwell B200 GPU entirely from scratch, using CUDA and some PTX code. Through a 14-step progression of optimizations illustrated with 60 diagrams, the kernel reaches 94.4% of FlashAttention-4's performance on 4K, 8K, and 16K sequence shapes, and is demonstrated by plugging it into a video-generation model.

Greenpeace warns AI expansion could undercut Apple's climate progress

Greenpeace says the rollout of Apple's AI features, including the upcoming Siri overhaul, will strain the company's renewable energy commitments due to the heavy electricity and water demands of large-scale data centers. The environmental group, which has praised Apple's clean energy record for over a decade, says Apple must now prove it can scale AI without abandoning those climate goals.

Amazon Labor Day sale slashes prices on AirPods Pro 3, AirTag 2, iPhone 17 Pro and M6 Mac mini

Amazon's 2026 Labor Day sale is now live with steep discounts across Apple products, including AirPods Pro 3 back down to $199, AirTag 2 as low as $20, and Apple Watch SE 3 hitting a $200 all-time low. Renewed iPhone 17 Pro units are discounted up to $290, while the newly launched M6 Mac mini and refurbished M5 MacBook Air configurations also see modest price cuts.

Uber cuts 3,300 jobs, about 10% of workforce, to flatten management

Uber is eliminating roughly 3,300 positions worldwide, around 10% of its total staff, as part of a broader restructuring effort announced by CEO Dara Khosrowshahi in an internal memo. The plan includes cutting management ranks by 20%, shrinking small teams, merging engineering and delivery units, and ending remote work for nearly all employees.

Trump Justice Department backs OpenAI in NYT copyright case

The Trump administration filed a statement of interest in The New York Times' copyright lawsuit against OpenAI and Microsoft, siding with OpenAI's claim that training AI models on copyrighted text qualifies as fair use. Government attorneys warned that narrowing fair-use doctrine could hinder scientific and economic progress tied to large language models.

Fermi Explorer Mission to launch Alpha Centauri probe using AI-designed trajectory

A nonprofit called the Fermi Explorer Mission plans to launch a spacecraft toward the Alpha Centauri star system by the end of 2029, using a novel flight path calculated by an AI system built by physics lab PSI. The mission, though launched this decade, could take the probe as long as 80,000 years to reach its destination 4.4 light-years away. Separately, MIT Technology Review highlighted how AI models have rapidly improved at solving New York Times Connections puzzles, jumping from 18% accuracy in late 2024 to near-perfect scores by early 2025.

Edelson PC files 30 new lawsuits against OpenAI over Tumbler Ridge shooting

Law firm Edelson PC is submitting 30 additional lawsuits in a California court against OpenAI, expanding on seven earlier complaints tied to the February school shooting in Tumbler Ridge, British Columbia. The new plaintiffs include teachers, a principal, and students present during the attack, and for the first time the filings allege OpenAI aided and abetted the shooting rather than merely failing to prevent it.

GoPro to merge with photonics startup Starman Optical in $285 million cash deal

GoPro has agreed to a $285 million cash merger with Starman Optical, a privately held maker of high-speed optical transceivers for AI data centers. Shareholders will receive $1.14 per share plus a roughly 10% stake in the combined, still Nasdaq-listed company, and Starman will also pay off GoPro's $92 million debt. The deal, expected to close by year-end pending regulatory approval, comes as GoPro's stock had crashed toward delisting territory amid weak sales and auditor doubts about its survival.

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