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openai_blog ยท Sep 22, 2026 ยท news

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Introducing GPT-6 Sol and Luna

the OpenAI blogSep 22, 2026
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Meet GPT-6 Sol and Luna, two models that bring frontier intelligence to everyday work with different balances of capability and cost.

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Opus 5.5 โ€” open the evidence trace โ†’

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