Hourwiz Explains · video notes
Is GPT-6 free? What OpenAI says, and our free-account test
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Short answer: OpenAI says yes, the Luna version. We didn't take that on trust: we asked one free ChatGPT account five everyday questions and counted how many answers came back as something you can tap.
What OpenAI says
- Free and Go: GPT-6 Luna. OpenAI's release notes (Oct 7, 2026): “Plus, Pro, Business, and Enterprise use GPT-6 Sol; Free and Go use GPT-6 Luna.” OpenAI says Free and Go get it from Oct 8, 2026, rolling out gradually, so not every account at once.
- Paid plans: GPT-6 Sol. Plus, Pro, Business and Enterprise, per the same release note.
- GPT-6 Astra: Pro, Business and Enterprise. OpenAI's help article says GPT-6 Pro, powered by GPT-6 Astra, is rolling out for Pro, Business and Enterprise plans. Plus gets Astra only in ChatGPT Work and Codex. Free and Go aren't listed.
- The new answers. GPT-6 came with what OpenAI calls Intelligent UI: ChatGPT can “combine text, visuals, and interactive elements to fit your question”, and can still give a simple text answer when that works best. OpenAI says it works on the web and in supported updated apps; the older ChatGPT desktop apps for macOS and Windows don't support it.
Read it yourself: ChatGPT release notes · GPT-6 and other models in ChatGPT · Intelligent UI in ChatGPT
OpenAI's own pages disagree. When we checked on Oct 13, 2026, OpenAI's help article “GPT-6 and other models in ChatGPT” still said “GPT-5.6 Luna is becoming the default model for Free and Go users.” The release notes and the Intelligent UI help page say GPT-6 Luna. That mismatch is why we checked a free account ourselves.
Our test: five questions, one free account
Our test. One free ChatGPT account, ChatGPT on the web in Chrome, Oct 13, 2026. A new chat for each question, the prompt pasted exactly, one run each: no retries, no follow-ups, no settings changed. One account and one run, not a benchmark.
There was no model picker on the free account. The only model label we saw was “6 Instant”, in the answer's Try again menu.
| Question | What came back | Interactive? |
|---|---|---|
| Airplane wing | Pictures: text with web images credited to their sites. Nothing in the answer to tap. | No |
| Bill split | Plain text: a short list. | No |
| Chicago trip | Interactive map: we tapped a stop and a place card opened. | Yes |
| Capitals quiz | Interactive quiz: we tapped Denver and it turned green. | Yes |
| Bike chain | Interactive form: “What kind of bike do you have?” | Yes |
Our test: 3 of 5 came back interactive. “Interactive” means something inside the answer reacted when we tapped it.
Our take: free gets Luna, not Sol, but the new answers are the real upgrade.
The five prompts
Run them on your own account: a new chat for each, pasted exactly as written. Your results may differ while the rollout continues.
1. How does an airplane wing create lift?
2. Split an $84 dinner bill 3 ways with a 20% tip.
3. Plan a 3-day trip to Chicago.
4. Quiz me on the 50 US state capitals.
5. How do I fix a bike chain that fell off?Download the prompts and our results (.md)
Too many visuals?
OpenAI's Intelligent UI help page: in Settings → Personalization → Layout and Visuals, choose Simple. It “reduces visual and interactive elements, though some may still appear.” So it turns visuals down, not off. On our free account the setting read “Default”; we didn't change it.
Sources
Every fact on this page comes from these pages, opened on Oct 13, 2026. Things change: check the live page before you rely on it.
- OpenAI Help, ChatGPT release notes: “GPT-6 and Intelligent UI in ChatGPT” (Oct 7, 2026) Sol for paid plans, Luna for Free and Go; Free and Go from Oct 8; text, visuals and interactive elements.
- OpenAI Help, “GPT-6 and other models in ChatGPT” Astra plans; web and updated apps, not older desktop apps; still said GPT-5.6 Luna for Free and Go on Oct 13, 2026.
- OpenAI Help, “Intelligent UI in ChatGPT” GPT-6 Luna for Free and Go; Layout and Visuals → Simple.
- iClarified, on the GPT-6 and Intelligent UI rollout (Oct 7, 2026) Rollout dates; simple requests can still get plain text.
- Notebookcheck, on Free and Go getting GPT-6 Luna in Chat Also noticed the help page still naming GPT-5.6 Luna.
Our test: one free account, one run of each prompt, Oct 13, 2026. Model names and rollouts change fast: check OpenAI's pages before you rely on this. Hourwiz uses Claude, made by Anthropic, in its own work; no vendor paid for or reviewed this page.
No sponsor and no affiliate links on this page. Vendors are named so you can check them yourself, not as recommendations.
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