Daily AI Briefing
The 6 top stories of the 120 AIBriefs curated that day.
GPT-6 Astra is OpenAI's most intelligent and aligned model, with state-of-the-art capabilities across computer use, coding, cybersecurity, and science. It is the first OpenAI model to reach the Critical level of cybersecurity capability under the Preparedness Framework.
OpenAI announced an AI-generated solution to the Navier-Stokes Millennium Prize Problem, found by 10,000 autonomous agents in 88 hours using a next-generation model. The proof is formalized in Lean. The effort consumed 300 billion output tokens, costing $22.5 million at current Astra rates.
OpenAI released ChatGPT Images 2.5, introducing two API models: Sunburst for precision editing and Flare for faster generation. Flare delivers images over 50% faster, and both support transparent backgrounds. Available now to all ChatGPT, Work, and Codex users.
Google introduced Gemini 3.8 Flash, its most intelligent workhorse model, and 3.8 Flash Cyber, a cybersecurity model, marking the third Flash release in six weeks. Both are priced at $0.75 per million input tokens and $3.75 per million output tokens.
Claude Fable 5.1 is now live in Claude Code and the Claude Platform, priced the same as Fable 5 with 75% cheaper API cache reads ($0.25/MTok, down from $1/MTok). It scores 55.8% on Terminal-Bench 4.0, ahead of Fable 5 (42%) and Opus 5 (52.3%).
Meta unveiled Muse, a personal AI agent that runs in a secure VM and can connect to Gmail, Google Calendar, Outlook, Plaid, and more. It's available in a free tier or a $20/$100 monthly subscription.
Also that day
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