Which AI models can I use in Unium?

Unium supports leading models from providers including Anthropic (Claude), OpenAI (GPT), Google (Gemini), DeepSeek, and others, all from one app.

Do I need a separate subscription for each model?

No. One Unium plan gives you all of them, and it covers everyone on your account rather than one person. Getting started is free on a model we choose for you.

Can I switch models in the middle of a conversation?

Yes. On a paid plan you can send your next message to a different model and keep the same chat, so your context stays in one place.

Use Claude, GPT, and Gemini in one app

Different models are good at different things. Unium puts the leading ones in a single app, so you can pick the right one for each question without juggling tabs, logins, or a subscription per provider.

Why bother with more than one model

No single model is best at everything, and the gap keeps moving every few months. One writes the cleanest code, another reads a long document more carefully, a third is just fast and sensible for the boring questions. When each one lives in its own app, with its own login and its own monthly fee, most people give up and stick with whatever they already pay for.

That is the real cost of the one-app-per-model setup. Not the money so much as the friction. You stop reaching for the better tool because reaching is annoying.

How it works in Unium

Start a chat and pick a model. Halfway through, you can send the next message to a different one without leaving the thread. The history stays put, so the new model sees everything that came before.

The choice of model becomes a per-message decision instead of a per-app one. Ask Claude to draft something, hand the same thread to GPT to turn it into code, then let Gemini check it over. Same conversation, same context, no copy-paste between tabs.

Free chats run on a model we choose for you, which is enough to get a proper feel for it. Choosing the model yourself is what a paid plan adds, from $10 a month.

Asking more than one at once

For anything that actually matters, a second opinion is the fastest way to catch a bad answer. You can put the same question to a few models and read them side by side. Where they agree, you can relax a little. Where they disagree is usually the exact part worth a closer look.

We are building this out into a multi-model council that gathers several models on one question, for the times when a single answer is not enough.

One plan, not one plan each

The other thing that changes is the bill. Instead of a monthly plan per provider, and then a second copy of all of it for the person you live with, one Unium subscription covers everyone on your account. Add your partner with a link and they get the same models you do, with nothing to split and no second bill.

The same thread works on your iPhone and in the browser, so whoever picks it up next can carry on wherever they are. See what each plan includes.

Use Claude, GPT, and Gemini in one app.