Checked November 2026. Apps change quickly; check the ChatGPT app’s own site for its latest features and prices.
| Infinity | ChatGPT | |
|---|---|---|
| Made by | Amp Dynamic | OpenAI |
| Price | Free; you pay providers for cloud models you choose | Free plan, plus paid plans |
| Account | None | OpenAI account |
| Models | Local and cloud: Ollama, LM Studio, Apple Intelligence, OpenAI, Anthropic, Google and more | OpenAI’s models |
| Works offline | Yes, with local models | No |
| Branching | From any phrase, beside the chat, all on one map | Branch a message into a new chat |
| Ask several models at once | Yes, up to four | No |
| Where chats are saved | On your Mac | In your OpenAI account, synced across devices |
| Other platforms | Mac only | Web, Windows, iPhone, Android and more |
Which is right for you?
Choose Infinity if you want to follow several ideas from one answer and see them together, use more than one model or company, run models on your own Mac, or keep chats off the cloud.
Choose ChatGPT if you want OpenAI’s full set of features in one place, your chats synced on every device, or you rely on features only OpenAI offers.
Use bothYou don’t have to pick one: Infinity can use a ChatGPT Plus or Pro plan through OpenAI’s Codex app. See how.
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Download for Mac
Free · macOS 14+ · Apple silicon or Intel