Portail isn't a GPT knockoff. It's a chat where GPT-5.5, Claude, Gemini, DeepSeek, Grok and hundreds of other models share one thread and one memory. Ask GPT, get a second opinion from Claude, keep going. Nothing to re-paste.
ChatGPT is a great product built around one company's models. That's fine until a task wants something else: Claude for a long careful document, Gemini for a huge input, DeepSeek for cheap reasoning, Grok for a blunt take. Then you're copying context between tabs and paying for a second subscription.
Portail's answer is one chat for all of them. The thread is the unit, not the model. You pick whichever model suits the next message, and it sees the whole history.
What you keep, what you gain
You keep GPT: GPT-5.5, the Pro and Mini versions, and the o-series reasoning models are all in the picker. You also keep the habits that matter, like file uploads, image understanding and voice.
You gain Claude, Gemini and the rest in the same window, plus things a single-vendor app can't do: Council sends one message to several models and picks the best answer, Connectors let any model work with your Gmail, Calendar, Slack or Notion, and scheduled tasks run your prompts while you sleep.
Moving over
Sign up with email or Google, then tell Portail about yourself in the onboarding. Onboarding can also help you bring context over from another assistant, so your first chat already knows who you are.
Questions
Is Portail a good free ChatGPT alternative?
The Free plan includes every model, active and passive memory, model switching and a starter credit allowance, with no card. Frontier models use credits faster, cheap models stretch them, so you can try a lot before deciding.
Can I still use GPT on Portail?
Yes. OpenAI's GPT models are in the list next to every other lab's. Use GPT for one message and Claude for the next, in the same thread.
Will I lose ChatGPT features like memory?
ChatGPT's own memory stays in ChatGPT. Portail has its own active and passive memory, and it works across every model rather than one.