Amazon founder Jeff Bezos returns to operations, co-CEO of new physical AI company\"Project Prometheus\" with $6.2B funding.

Alibaba's Qianwen App launches public beta for free, directly competing with ChatGPT, aiming to be an AI lifestyle portal.

xAI releases Grok 4.1 LLM with comprehensive performance enhancements in speed, quality, and emotional intelligence.

Decentralized social network Mastodon founder steps down as CEO, platform transitions to non-profit, new board members join.

OpenAI allows employees to donate company equity to charities, addressing long-standing grievances amid company restructuring.

Google introduces AI weather model WeatherNext 2, developed by DeepMind, offering faster, more accurate 15-day high-res forecasts.

Google develops

\"Supervised Reinforcement Learning\" AI training method, enabling small models to handle complex multi-step reasoning.

NetChoice sues Virginia over social media time limit bill for minors, citing First Amendment violation and privacy concerns.

JD Delivery independent App launches, integrating on-demand retail and local services, with a pledge for non-commercial reviews.

ByteDance's Seed team sees another core member depart, marking the seventh this year, raising concerns about team stability.