GPT-6 comes to everyone in ChatGPT, with Sol and Luna

What's new

OpenAI has released GPT-6 to everyone who uses ChatGPT. The model comes in two versions. Paying users on Plus, Pro, Business and Enterprise got GPT-6 Sol on October 7. Free and Go users get the lighter GPT-6 Luna from October 8. Android Headlines writes that the rollout is global, but it is gradual and may vary from platform to platform. I have not found anything about special rules for Denmark or the EU. OpenAI previously launched Sol and Luna for paying customers and in the API (the programming access that companies use). Now they are reaching the ChatGPT app for everyone. In addition to the two models, OpenAI also has a larger model, GPT-6 Astra, which is included in the Pro, Business and Enterprise subscriptions with a cap on the number of messages.

What's clever

The most visible new feature is called Intelligent UI. ChatGPT can now build small interactive elements directly in the conversation instead of only writing text: clickable diagrams, recipe widgets, charts and a bill splitter. The feature is coming to web and mobile, but not to older desktop apps. You can turn off the visual elements in the settings if you prefer plain text.

In addition, OpenAI says that web search is 44 percent faster than in GPT-5.6 Instant. The answer is also streamed while the model is still thinking, so you are not sitting and waiting for the whole answer. If you want to keep the old GPT-5.6 Sol, you can select it.

Cheaper or better?

OpenAI says that Sol makes about half as many mistakes as its predecessor and reaches the same reliability as Astra on fact-checking and code errors. These are OpenAI's own measurements. TechCrunch writes that the new models cost half as much as the 5.6 series. OpenAI also claims that the models beat Anthropic's models, including Opus. However, Anthropic released Opus 5.5 a few hours earlier, so the comparison has not yet been independently tested.

For ordinary users, the price is unchanged. Free and Go cost the same as before, and Plus costs 20 dollars a month. According to a price overview, Pro is available at 100, 200 and 500 dollars a month. No extra fee has been introduced for Intelligent UI. For developers, according to third-party sources, the API prices are 2 dollars per million tokens (pieces of text) in and 10 dollars out for Sol. For Luna it is 0.10 dollars in and 0.50 dollars out, and for Astra 10 dollars in and 50 dollars out. Sol can read around 1.05 million tokens at a time, but above 272,000 tokens the price rises to 4 and 15 dollars. These figures have not been confirmed on OpenAI's own page, which I could not open.

What it's good for

Sol is aimed at heavy tasks such as coding, long documents and complex questions. This is where paying users and companies will notice the difference. Luna is intended for more routine tasks, such as summarizing documents and extracting information from text. That suits free users who use ChatGPT for everyday questions, emails and search.

Intelligent UI is especially useful when you want to plan something, compare numbers or get an overview, such as a recipe, a budget or splitting the bill. How big the difference will be for free users on Luna is still unclear, as no figures have been published for Luna alone.