{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"UpNext AI","title":"OpenAI’s Astra Cyber Model, AfterQuery’s $3.2 Billion Valuation, and Multi-Day Coding Agents | UpNext AI – September 2, 2026","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/9cc21cc4\"></iframe>","width":"100%","height":180,"duration":446,"description":"OpenAI previews safeguards for its forthcoming Astra cyber model, AfterQuery reportedly reaches a $3.2 billion valuation, and new research explores a layered harness for multi-day autonomous coding.\nCovered in this episode:\n- OpenAI says Astra can find and exploit security flaws, alongside a restricted-access release plan.\n- AfterQuery reportedly becomes Y Combinator’s fastest startup to reach unicorn status.\n- Harness-of-Harness research tests iterative control loops for long-running coding agents.\n- Anthropic launches Claude Fable 5.1 and Mythos 5.1.\n- Google publishes its August AI updates roundup.\n- GoPro is set to be acquired by an AI hardware group.\nSource links:\n- OpenAI Astra: https://techcrunch.com/2026/09/01/open-ais-astra-model-is-on-the-way-and-very-good-at-breaking-into-computer-systems/\n- AfterQuery: https://techcrunch.com/2026/09/01/afterquery-reportedly-becomes-y-combinators-fastest-ever-unicorn-now-valued-at-3-2b/\n- Harness-of-Harness paper: https://arxiv.org/abs/2609.01481v1\n- Claude Fable 5.1: https://the-decoder.com/anthropics-claude-fable-5-1-promises-better-coding-and-research-at-up-to-45-percent-less/\n- Google August AI recap: https://blog.google/innovation-and-ai/technology/google-ai-updates-august-2026/\n- GoPro acquisition: https://www.ft.com/content/5f643674-bf2b-48f1-bc3e-a7fe54820c99?syn-25a6b1a6=1","thumbnail_url":"https://img.transistorcdn.com/U8MjYsqEAUXr8sykSIjiubn3kUnZpkcAAqCjELTLubA/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS85YWE0/MDRlYTJkZTY4ZDhk/N2YzZjZmYzg0ZmQ2/Mzg1NC5wbmc.webp","thumbnail_width":300,"thumbnail_height":300}