TL;DR
OpenAI said on Wednesday 7 October that GPT-6 is coming to ChatGPT’s whole user base, which it puts at over 1.2 billion people a week. Paid tiers get it first, and Free and Go users from Thursday 8 October. The headline feature, Intelligent UI, lets the model answer with interactive elements instead of text alone.
What changes in the chat window
OpenAI says its first GPT-6 models, released last month, were aimed at paying customers. The new release changes what an answer can look like. OpenAI says the model now decides how to combine text, graphics, buttons, forms and charts depending on the question, and falls back to plain text when that is the clearer reply.
Its examples are domestic: a Sunday roast with a cooking timeline beside the recipe, road-trip stops plotted on a map, a savings calculator, a bill splitter for a group dinner, even a small game. OpenAI assembled a set of streamable native components for the model to draw on, plus a compiler that renders the interface piece by piece as it is generated, so users are not left waiting for the full response. It also trained the model on judgements of clarity, usefulness and completeness in the interfaces it produced.
The second change is speed. ChatGPT can now start answering while it is still reasoning. On questions that need a web search, OpenAI says GPT-6 Instant begins replying 44% sooner on average than GPT-5.6 Instant. These are OpenAI’s own figures, not independent tests.
Who gets which model
Paid users on Plus, Pro, Business and Enterprise get GPT-6 Sol; Free and Go users get GPT-6 Luna. Both models, priced and positioned last month, are tuned here for everyday chat. For Enterprise, access is up to each workplace’s administrators, and the models behind the Work and Codex features are unchanged. OpenAI’s launch clip is on our videos page.
Anthropic is already using Luna as a yardstick. In the benchmark table for its new small model, Claude Haiku 5.5, it scores Luna at 16.4% on Terminal-Bench 4.0 against Haiku 5.5’s 39.2%.
Looking forward
The rollout is global, so UK users on free accounts should see it from Thursday. In our view, the bigger shift is for organisations: staff asking ChatGPT for a quick model or calculator will now get one built on the spot, which raises fresh questions about checking figures inside tools nobody has reviewed. OpenAI frames the aim as software that adapts to people “instead of people adapting to software”.