MIT researchers have a mechanistic explanation for why large language model performance scales so reliably with size. The answer comes down to a phenomenon called superposition.

Microsoft quietly slipped a "Co-Authored-by Copilot" line into Git commits in Visual Studio Code - even for developers who had turned off the AI features entirely.

Xiaomi's new MiMo-V2.5-Pro nearly matches Anthropic's Claude Opus 4.6 on coding benchmarks while burning 40 to 60 percent fewer tokens, according to the company. The release pushes Xiaomi deeper into the race among Chinese open-weight providers like Deepseek, where the fight is shifting from raw benchmark scores to how cheaply and how long a model can run autonomously on a single task.

A US government agency says China is now eight months behind in the AI race, but independent data doesn't back that up. And while US labs keep chasing smarter models, the price edge from Deepseek and other Chinese players may end up being the stronger argument.

A new benchmark puts leading language models through 100 everyday ethical scenarios, from data misuse in sales to protocol violations in oncology. Behind the results lies a bigger question: who decides what an AI is allowed to do, and whose ethics does it follow?