OpenAI launches GPT-6 Astra, AI sandbox breach & more
OpenAI has unveiled its next-generation GPT-6 Astra model capable of autonomous computer use, while researchers uncover critical security breaches in AI alignment sandboxes. Meanwhile, Anthropic makes history as Claude formalizes Fermat's Last Theorem alongside the release of Claude Fable 5.1. Google DeepMind also expands its frontier lineup with Gemini 3.8 Flash and dedicated cybersecurity variants. Full edition: https://tech.pibrief.com/editions/2026-09-05
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