ChatGPT-6 just got a huge 'interactive answers' upgrade — and free users get it starting today

ChatGPT’s GPT-6 upgrade adds interactive charts, diagrams and tools. Here’s what’s changing and when free users can try it.
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GPT-6 Sol and Luna arrive with 50% lower API prices

OpenAI has expanded GPT-6 with the GPT-6 Sol and GPT-6 Luna models. Both are available in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise, and Edu users. Free and Go users can access GPT-6 ...
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OpenAI upgrading ChatGPT and Codex with two more GPT-6 models

Earlier this month, OpenAI released the first GPT-6 model with Astra. Now GPT-6 is expanding with new GPT-6 Sol and GPT-6 Luna models. GPT-6 Sol and GPT-6 Luna are now available Per the ChatGPT ...
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GPT‑6's Intelligent UI brings interactive answers to ChatGPT

GPT‑6 rollout: OpenAI started releasing GPT‑6 with Intelligent UI on October 7, 2026, initially to paid tiers and then to free users. Enhanced capabilities: The update offers clearer comprehension, ...