The file
Sourced AI briefs in publish order — newest first. Citeable originals live on the homepage under From Signal Desk.
Listen Labs walked away from a signed $125 million Series C term sheet at a $1.5 billion valuation as Salesforce acquisition talks reportedly heated up.
OpenAI’s GPT‑Live‑1 hits the API as a full-duplex voice front end — listen and speak at once, hand hard reasoning to a backend model, priced at five cents a minute.
Paul Christiano is joining OpenAI’s foundation board — and saying out loud that the industry, including OpenAI, is not yet on track on catastrophic loss-of-control risk.
A departing Anthropic pretraining researcher says colleagues already talk about “endgame,” and he wants labs to pace recursive self-improvement before the race forces shortcuts.
Suno’s v6 is the first model it says was rebuilt with licensed label data, but the Verge’s hands-on still finds polished sameness where musicians want grit.
OpenAI says an unreleased model swarm cracked Navier-Stokes in 88 hours—then mathematicians recoiled at the scooping optics and the chill on open research norms.
San Francisco’s city attorney ordered Meta to stop paid ads that turn minors’ images into AI sexual clips—and to explain how hundreds slipped paid review.
NVIDIA’s Dynamo guide shows when peeling vision encode off prefill and decode pays off—and when long outputs make the trick a wash.
CUDA 13.4 brings Windows on Arm, early Rubin hooks, and MPS V3 controls that treat shared GPUs more like programmable infrastructure than a free-for-all.
U.S. agencies name six Chinese AI companies for industrial-scale distillation of frontier models—and urge labs to silently downgrade suspected attackers, a fix that could also punish legitimate users.
Microsoft locked ten AI privacy and safety terms with the AFT a week after NYC and LA paused student-facing AI—turning union leverage into contract language districts can actually enforce.
OpenAI puts one of alignment's defining researchers on the Foundation Board and Safety and Security Committee—non-voting on the PBC board, but positioned to challenge how hard the lab pressures its own brakes.