OpenAI Splits GPT-6 Into Sol and Luna by Tier — SkimNews
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- OpenAI confirmed that GPT-6 in ChatGPT's Chat tab runs on GPT-6 Sol for Plus, Pro, Business, and Enterprise users, while Free and Go tiers are powered by GPT-6 Luna.
- GPT-6 with Intelligent UI is rolling out globally to Plus, Pro, Business, and Enterprise users today, with expansion to Free and Go users beginning shortly after.
Why it matters: OpenAI is splitting GPT-6's underlying engine by subscription tier, giving paying users GPT-6 Sol while free users get GPT-6 Luna — a tiered model that makes the choice between paid and free ChatGPT more consequential for output quality and capabilities.
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