OpenAI says GPT-6 in ChatGPT's Chat tab runs on Sol for Plus, Pro, Business and Enterprise, and Luna for Free and Go
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| Source: Techmeme | Original article
OpenAI announced that the ChatGPT Chat tab now runs on GPT‑6 Sol for Plus, Pro, Business and Enterprise users and on GPT‑6 Luna for Free and Go users, with the Intelligent UI rollout beginning today.
OpenAI has begun rolling out its next‑generation language model, GPT‑6, inside the Chat tab of ChatGPT. The upgrade arrives as “Intelligent UI,” a visual layer that blends text with charts, diagrams and interactive widgets. For paying subscribers – Plus, Pro, Business and Enterprise – the service runs on GPT‑6 Sol, while free and Go users receive GPT‑6 Luna. The paid‑tier launch started on 7 October 2026 and the free‑tier rollout follows on 8 October, initially via the desktop app.
The move builds on the Intelligent UI features we covered earlier this week, when OpenAI first introduced picture‑rich answers for ChatGPT’s Plus and Enterprise users. By pairing the new UI with a fresh model family, OpenAI aims to raise the baseline of conversational capability across all user segments. Sol and Luna are described as “tuned for everyday conversation,” suggesting a focus on reliability and safety as the models handle more complex, multimodal prompts.
Why it matters is twofold. First, the tiered deployment signals OpenAI’s strategy of differentiating premium services with higher‑performing models while still offering a visual experience to free users. Second, the visual UI could reshape how users interact with AI, pushing the market toward richer, tool‑assisted dialogues rather than plain text. Competitors will need to match both model strength and interactive presentation to stay relevant.
What to watch next includes performance feedback from the broader user base, especially how Luna handles the visual UI compared with Sol. OpenAI’s system card promises more technical detail, and analysts will be looking for any pricing adjustments or new enterprise features that accompany the rollout. The next few weeks should reveal whether GPT‑6’s visual capabilities translate into measurable productivity gains for businesses and whether the free tier’s experience narrows the gap with paid subscriptions.
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