Anthropic released Fable 5.1 for coding and Mythos 5.1 for research, with Fable improving Terminal-Bench scores and Mythos exceeding its predecessor on Terminal-Bench-Science. Claude 5.1 cache reads cost 75% less, and Fable 5.1 is available while Mythos 5.1 requires trusted access.
Solaris generates interactive interfaces visually as users interact with them, without HTML, CSS, or JavaScript underneath. The early-access research project is designed for adaptive interfaces, website-capable agents, and editable product demonstrations.
OpenAI plans to remove its models from Cursor by Nov. 12 after Cursor was acquired by SpaceX. OpenAI cited cancellation rights triggered by the sale and Elon Musk’s history of allegedly violating agreements.
OpenAI's upcoming Astra model reportedly uses recurrent depth, repeatedly analyzing the same text to improve coding and computer-use performance without increasing model size. The technique produces less readable, largely mathematical intermediate reasoning.
Anthropic published research showing automated researchers making other AI models safer with limited human involvement, offering an early view of AI systems contributing to their own research and development.
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