← Front page

The AI Daily Brief · Monday, August 10, 2026

OpenAI Halts Release of Astra Model Due to Advanced Cyber Capabilities

OpenAI has paused the release of its upcoming model, codenamed Astra, due to concerns about its advanced cyber capabilities. The decision follows internal evaluations that placed Astra in the 'critical' category under OpenAI's preparedness framework, indicating potential for identifying and developing zero-day exploits. The company is implementing enhanced safety measures, including isolated testing environments and improved encryption, before making the model generally available.

personSam AltmancompanyOpenAI

The tape

3 quotes
Our latest internal evaluations of Astra, one of our upcoming models, over the past few days, indicates significant advancements in agentic coding and cyber security.
OpenAI
These results, in addition to expert assessments, have led us to conclude last night that we cannot rule out critical cyber capabilities under our preparedness framework.
OpenAI
Given its cyber capabilities, we need a little bit longer to do this safely, but hopefully not too long.
Sam Altman
Heard on The AI Daily Brief — “What the Heck is Graph Engineering?, published Monday, August 10, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via Gemini audio transcription · $0.02
OpenAI Halts Release of Astra Model Due to Advanced Cyber Capabilities — Heardvine