1+ week, 3+ day ago   (139+ words) OpenAI says Astra is its first model to reach the Critical cybersecurity threshold, with limited alpha access planned before wider Daybreak Blue use. In hands-on assessments, Astra built a browser compromise chain that escaped the sandbox and ran host commands…...

1+ week, 5+ day ago   (155+ words) Fable 5.1 is now broadly available with 75% cheaper cache reads, while Mythos 5.1 is limited to vetted cyber and life-science users. Cache reads now cost 75% less at $0.25 per million tokens. Anthropic estimates typical costs will fall 25%, with savings on highly agentic work…...

2+ week, 1+ day ago   (222+ words) Tencent released open-source Hy4 preview model TestingCatalog AI News Tencent has released Hy4 preview, a 770-billion-parameter flagship model with 49 billion active parameters and a one-million-token context window. The company calls it its most capable model so far and says it delivers the…...

2+ week, 4+ day ago   (278+ words) Claude Cowork now uses the same memory as Chat, updating topics during conversations across Free, Pro and Max plans. Cowork can now draw on details accumulated in chat, such as project priorities, team terminology, or preferences for manager updates. Information…...