OpenAI has released GPT-6 Astra (opens in a new tab) alongside a warning from its chief scientist that no one is prepared for the consequences of advanced AI. Meanwhile, Anthropic rolled out Claude Fable 5.1 and Mythos 5.1 (opens in a new tab), marking a strategic shift in frontier models. A Harvard study found the public has little objection to AI taking search marketers’ jobs (opens in a new tab).

In developer tools, a post on unit testing with C# and Moq (opens in a new tab) and a guide on rate limiting in Node.js (opens in a new tab) offer practical advice. Other highlights include an exploration of WebGPU lit tubes (opens in a new tab) and a look at bzip3 compression (opens in a new tab). WordPress thanked the community for the 7.1 release (opens in a new tab), while a developer shared how Rust accelerated Python matrix ops by 1200x (opens in a new tab).