ChatGPT splits GPT-5.6 into paid Sol and free Luna models
Plus and Pro get GPT-5.6 Sol for instant and reasoning replies, while Free and Go users get unlimited chats with the lighter Luna.
OpenAI has rolled out its GPT-5.6 family across ChatGPT's tiers. Plus and Pro users now get GPT-5.6 Sol for both Instant and deep reasoning responses, which OpenAI says are more factual and focused. Free and Go users get unlimited text chats with a new, lighter model, GPT-5.6 Luna.
ChatGPT
AI assistant by OpenAI — chat, write, code, analyse data, generate images, and browse the web, powered by the GPT-5.6 family.
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