What OpenAI announced
On October 7, 2026, OpenAI's Deployment Safety Hub said: "We're launching GPT-6 to everyone in ChatGPT, across free and paid plans globally." The new models replace GPT-5.6 Sol and GPT-5.6 Luna in ChatGPT.
What we don't know
That page doesn't say what happens to chats you started before the change, or when each plan gets the new models. So we won't guess. What doesn't change is how chats work: the model works with a limited amount of context for each reply. A long history can include drafts, corrections and discarded ideas.
Keep the old chat, or start clean?
Keep going in the old chat if it's short, it's still on track, and it hasn't started forgetting your rules.
Start clean if any of these are true:
- The chat is long, slow, or close to its maximum length.
- It's drifting: forgetting rules, reopening decisions, repeating itself.
- You want to see what the new model does with your project, starting from a clear brief rather than a long history.
Start clean without losing the work
A new chat only needs a short handoff: the goal, what's decided, the rules you kept repeating, and where you stopped.
Uncook's Handoff writes it for you. On the ChatGPT page, click the Uncook icon and pick Handoff. Read the prompt, change what you want, then copy it into a new chat.
Or just get a summary of the old chat
If you're not continuing the work but want to keep track of where it ended, Summarize gives you the essentials of the chat: the topic, what was settled, where it stands and what's open. Export it as PDF, Markdown or text.
Questions people ask
Do I have to start a new chat to use GPT-6? OpenAI's announcement doesn't say. Check the model shown in ChatGPT. Starting fresh is a choice, not a requirement we know of.
Is GPT-6 better for my project? We don't rank models. Try it on your own work: a clean start with a good handoff is the fairest test.
Will my old chats disappear? Nothing in OpenAI's announcement says your old chats will disappear. Check your account's history settings for how chats are kept.
Start fresh,
without starting over.
Add to Chrome
We don't keep the conversations you bring. When you click Send to Uncook in the extension window, the extension sends the chat from your tab to our servers, encrypted, for up to 30 minutes, and we delete it as soon as your Uncook page opens it. What Uncook makes from it is kept as a task, for as long as our Privacy page says. Neither your chats nor your tasks are used to train AI models.