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OpenAI launches GPT-6 Astra, first model it rates 'Critical' for cyber capability

Model releaseFrontierUSConfirmed

OpenAI introduced GPT-6 Astra, rolled out first to limited organisations and then to paid ChatGPT tiers, its API, Azure and AWS Bedrock at $10/$50 per million input/output tokens. OpenAI said it meets the 'Critical' cybersecurity threshold in its Preparedness Framework, so it ships refusing advanced offensive tasks such as writing proof-of-concept exploits, with misalignment monitoring switched on.

Why it matters

It is the first model OpenAI has released at the 'Critical' top level of its own cyber-risk scale, testing whether deployment safeguards alone can contain that capability.

SourceOpenAICoverage: Wikipedia Checked against the primary source. Independently fact-checked on 7 Oct 2026.
OpenAIMicrosoftAmazon Web Services

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