Assertion 1
Yesterday that model shipped as GPT-6 Astra, first to a limited set of organizations, with paying ChatGPT tiers, the API, and AWS promised over the coming days TechCrunch AI Simon Willison's Weblog.
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OpenAI suspended work on some aspects of its upcoming model Astra after an internal review found it had made significant advancements in agentic coding and cybersecurity.
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OpenAI stated that the Astra model reached its "critical cybersecurity threshold," meaning it could independently identify and carry out cyberattacks against traditionally well-protected real-world systems.
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OpenAI announced that GPT-6 Astra is rolling out to a limited set of organizations on September 3, 2026, with plans to make it available to all ChatGPT Plus, Pro, Business, and Enterprise users, as well as via the OpenAI API and AWS, over the coming days.
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GPT-6 Astra will be API priced at the same rate as Claude Fable 5 and 5.1, which is $10 per million input tokens and $50 per million output tokens.
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According to the ARC-AGI blog, GPT-6 Astra achieved a 99.9% score on the ARC-AGI 3 benchmark using OpenAI's custom Provider Adapter harness for $19K, while the default harness yielded a 62.7% score for $26K.
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