GPT-6 rolls out to all of ChatGPT with "Intelligent UI" and a Decisions API

OpenAI has extended GPT-6 across ChatGPT: GPT-6 Sol for paid plans from October 7, GPT-6 Luna for Free and Go users from October 8.

Intelligent UI

The visible novelty is Intelligent UI: instead of a plain block of text, ChatGPT builds its answer from interactive elements (editable charts, buttons, forms, small tools like a custom calculator) and picks the format per question. It's an interface evolution more than a model one, and it pushes ChatGPT toward being an application rather than a plain chatbot.

The Decisions API

For developers, the Decisions API has been in beta since October 6, on GPT-6 Luna. It doesn't generate free text: from a context (text or image), it returns probabilities, choices or scores among predefined answers.

For an agent, it's useful to:

• classify content (spam, priority, topic);
• route a request to the right tool or agent;
• decide the next action from a closed set of options.

The appeal is reliability: a constrained, typed output is easier to plug into a workflow (n8n or otherwise) than a sentence to interpret. At Luna's price ($0.10 / $0.50 per million tokens), it's also very cheap.

API pricing

GPT-6 Sol costs $2 input and $10 output per million tokens, Luna $0.10 and $0.50.

Worth keeping in mind

• The Decisions API is in beta: behavior and limits may change.
• Constrained outputs reduce format errors, not judgment errors: an automatic decision on an irreversible action still deserves human approval.
• OpenAI's most ambitious products (dots, see our article) remain unavailable in Europe for now. Here, GPT-6's availability in ChatGPT is described as global.

Sources: 9to5Mac, iClarified, Tokenpost, DataNorth, Journal du Net (Decisions API).