# Path to Astra: critical capabilities and frontier safeguards

Astra is OpenAI's first model rated to find unknown security vulnerabilities and develop working exploit chains across hardened systems without human guidance.

- Astra achieved a 100% score on ExploitBench and discovered two zero-day vulnerabilities during testing on recent V8 engine flaws.
- The model refused 91.5% of disallowed cyber requests in jailbreak evaluations, compared to 59% for GPT-5.6 Sol.
- OpenAI restarted a previously paused large frontier reinforcement learning run for Astra on August 28 following training-environment security upgrades.
- Access to advanced cybersecurity capabilities will initially launch to a small alpha group before widening through Daybreak Blue.

## Why it matters

Defenders and developers using Astra will face stricter access tiers and active monitoring that can pause or stop tasks flagged as potential cyber misuse.

## Sources

- [OpenAI: Path to Astra: critical capabilities and frontier safeguards](https://openai.com/index/path-to-astra)

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Summarized by dstilled on 2026-09-01. https://dstilled.ai/story/e6120345-57c5-4c83-85e7-ea44fdfd3cc1