The Decoder reports Google DeepMind researcher Robert O'Callahan resigned, saying AI's current rate of change is too high and that building superintelligent AI soon is 'inherently irresponsible.'
The resignation is a rare public airing of internal unease at a leading lab, from a researcher whose own work made AI cheaper and faster to build.
OpenAI's DevDay 2026 recap post says the event included more than 20 announcements spanning GPT-6 Astra, ChatGPT, Codex, APIs, security, and new builder tools.
OpenAI's @OpenAI account says GPT-6.1 Sol is a significant upgrade over GPT-6 Sol in coding, computer use and complex professional work, nearing GPT-6 Astra on some benchmarks at substantially lower cost.
Microsoft Research published RetroChimera in Nature, an ensemble retrosynthesis model it says outperforms prior models in blind tests, and released its code and weights.
AWS says Claude Sonnet 5.5 is now available on Amazon Bedrock and Claude Platform on AWS, pitched as a cheaper, faster Sonnet for scoped coding and enterprise tasks.
Mark Zuckerberg said on X that Meta's Muse personal agent now handles voice and real-time video, can work in the background during long conversations, and is coming to glasses for hands-free use.
Researchers from MIT, Carnegie Mellon, NYU, and Stanford published an AI in Nature that defeated top-ranked human Stratego players by a large margin while costing far less to train.
