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OpenAI released GPT-6 Astra, succeeding GPT-5.6 Sol, scoring 99.9% on ARC-AGI-3 versus Sol's 7.8%. Astra scored 100% on ExploitBench, found two zero-day vulnerabilities, and meets OpenAI's Critical cyber threshold, prompting release restrictions. API pricing is $10 per million input tokens and $50 per million output tokens.
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