Astra
#60 in Frontier LLMsUnknown · 8× · last seen Sep 06, 2026
38
Momentum
Astra is the internal codename for OpenAI's next major language model (suspected successor to GPT-5), which has not yet been publicly released. OpenAI first announced Astra on August 1, 2026, by solving ten long-standing open mathematical problems. On September 1, 2026, OpenAI designated Astra as the first model to reach the "critical" cybersecurity threshold in its proprietary Preparedness Framework, resulting in heavily restricted access to advanced capabilities. OpenAI has not yet published official core specifications such as pricing, context window, license, or Benchmark values; a final release date remains pending.
Momentum trend
08.06.06.09.
Features
| Key Benchmark (%) | According to OpenAI, the public ChatGPT/Codex model enforces a 91.5% refusal rate on cyber-jailbreak attempts (vs. 59.0% for standard Sol) |
| Platform | Planned access via ChatGPT and API for general capabilities; advanced cyber capabilities only via the 'Daybreak Blue' partner program |
| Release Date | No official release date; OpenAI stated on September 1, 2026 that Astra will be made available "soon" |