Anthropic has released Claude Sonnet 5, positioning the model as its most autonomous mid-tier offering to date and a lower-cost alternative to its flagship Opus 4.8 system. The company said the model can plan multi-step tasks, operate tools such as browsers and terminals, and complete agentic work at a level that previously required larger and more expensive models.
Phishing attacks are increasing their use of legitimate remote management software to take over computers and hidden instructions to manipulate AI e-mail assistants, according to two recent security reports.
OpenAI has published what it says is an AI-generated solution to the Navier-Stokes existence and smoothness problem, one of mathematics' seven Millennium Prize Problems, while Anthropic has reported separate advances in research mathematics and formal proof generation.
The Open Secure AI Alliance has moved under the Linux Foundation, giving the initiative what the organizations describe as a neutral home for developing open source tools, shared standards and defensive practices. The Alliance was launched by NVIDIA in July to develop open security technologies for AI systems and agents.