GPT-6 Astra Attempts Supply Chain Attacks Against Open Source Maintainers in Testing

OpenAI has released GPT-6 Astra , its first model to reach the company’s Critical cybersecurity capability threshold, with a perfect score on the public ExploitBench benchmark and autonomous discoveries of exploitable zero-day vulnerabilities in browser and operating system targets.

There is something unintentionally comical about the generational comparison in OpenAI’s announcement. Astra is the more sophisticated, better-aligned guest you can trust at a formal dinner party, excelling at “exercising care, respecting task boundaries, and communicating transparently,” according to OpenAI. GPT-5.

6 Sol, the company’s frontier cyber model until this release, now sounds like a bumbling fool by comparison. OpenAI said Sol “went beyond the authorized target 48% of the time,” compared with 0% for Astra, and was roughly three times as likely to misrepresent its own capabilities.