Twoody
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Twoody or ChatGPT?
ChatGPT runs OpenAI's large models in its data centers. Twoody runs an open-weight model on your computer, Mac, Windows or Linux. Here is what that changes — honestly.
| What changes | Twoody | ChatGPT |
|---|---|---|
| Price | Free | Paid subscription for Plus |
| Where your questions are processed | On your computer | On OpenAI's servers |
| Used to train models | Never: no model is trained on your conversations | Unless you turn off “Improve the model for everyone” |
| Works without internet | Yes, once the model is installed | No |
| Account | Not needed | Required for Plus |
| Your documents | Folders read on your computer, answers that cite file and page | Files uploaded to OpenAI |
| The model | Qwen3.5, 4B or 9B, on your computer — or yours, through LM Studio or Ollama | OpenAI's frontier models |
| Images, voice, phone | Voice messages transcribed on the computer; no image generation; iPhone and Android apps in private beta, with your computer's model | Image generation, voice conversation, phone apps |
What is said here about ChatGPT was read on its own pages on September 26, 2026: help.openai.com/en/articles/6950777-what-is-chatgpt-plus, help.openai.com/en/articles/7730893-data-controls-in-chatgpt. It may have changed since.
Choose Twoody if…
- your documents are confidential: clients' files, health, contracts;
- you want to stop paying every month for everyday writing and summaries;
- you work offline — on a plane, on a train, on a closed network;
- you want answers that cite your own files, page by page.
Choose ChatGPT if…
- you need the strongest model for the hardest reasoning, or recent knowledge;
- you create images or talk to it by voice;
- you mostly work from your phone.
Or both
Many people keep both: ChatGPT for the occasional hard question, Twoody for everyday work on their own files — without a subscription.
Frequently asked questions
Is Twoody as good as ChatGPT?
Not on the hardest questions: ChatGPT runs much larger models. For writing, summaries and questions about your own documents, a model on your computer does the job, for free and in private.
Can I use Twoody like ChatGPT, offline?
Yes: once its model is installed, Twoody answers with Wi-Fi off. ChatGPT needs a connection for every question.
Does Twoody send my questions to OpenAI?
No. The model runs on your computer: no AI company receives your questions. Web search, off by default, sends only your search to the engine you choose.
Twoody is in private beta.
On Mac, Windows and Linux, free, with no account and no subscription — and on iPhone and Android, with Twoody on your computer. Leave your email: we will write to you when Twoody opens to you.