ChatGPT Desktop App Alternatives: 7 Desktop AI Apps Compared

The best ChatGPT desktop app alternative depends on which part of the desktop app you actually use. If it's the quick-ask shortcut and screen context, Gemini for desktop and Claude are the closest matches. If you want to hand off whole tasks on your computer, Claude and Comet go furthest. If you want local models that never leave your machine, Jan and LM Studio are the honest answers, and Msty Studio sits in between with local and online models in one workspace.

That framing matters because OpenAI's own app changed this year. ChatGPT for desktop now bundles chat, ChatGPT Work and Codex in one app, with context from your email, screenshots, files and whatever is on your screen. So "leaving the ChatGPT desktop app" no longer means leaving a simple chat window. It means picking a different desktop assistant, and the alternatives below differ more in what they can touch on your computer than in which model writes the replies.

This post is about desktop clients. If you're replacing ChatGPT the chatbot in general, our ChatGPT alternatives guide covers that broader question.

Quick comparison

What a desktop AI app should give you

Before the list, it's worth naming what you're paying for when you install an app instead of using a browser tab. Five things separate a good desktop AI app from a wrapped website:

• A global shortcut. One key combination summons the assistant over whatever you're doing.
• Screen and app context. The assistant can see the window you're in, or you can share it in one step.
• Local files. You can point it at documents on disk without uploading them one by one.
• Task execution. It can run multi-step work on your computer, ideally with approval prompts.
• Model choice and privacy. Some apps let you run models locally, which changes what leaves your machine.

Every app below is strong on two or three of these and weak on the rest. Pick based on the one you'd miss most.

1. Claude: closest to ChatGPT's "do it for me" direction

Claude's desktop app is Anthropic's answer to the same idea OpenAI is chasing: one app where you think, hand off tasks and code. Anthropic describes it as "all of Claude, in one app" that works with your files and apps. It ships for macOS and Windows (including Windows on Arm and the Microsoft Store), with Linux covered in Anthropic's docs.

The reason to switch is less the chat window than what sits next to it. Claude's desktop app is also a host for MCP servers and the home of Claude Code's graphical interface, so it connects to tools and local projects in a way a browser tab can't. You can also pair it with the mobile app and send a task from your phone to your desktop.

Where it's weaker: it only runs Claude models. If you want to switch between providers in one window, look at Msty Studio or Jan instead. If you're already on Claude and wondering what else is out there, we wrote a separate Claude desktop alternatives comparison.

2. Gemini for desktop: the best shortcut experience

Gemini for desktop is the most direct replacement for ChatGPT's quick-ask shortcut. Press Option + Space on Mac or Alt + Space on Windows, and Gemini appears over your active work. You can also share your screen so it answers from what you're looking at, dictate into any app and have Gemini polish the text, and flip to a Task mode that runs multi-step chores in the background, with each action approved by you.

Its other edge is Google's own apps. Gemini pulls context from Gmail, Google Drive, Docs and Calendar, which is the one thing ChatGPT's app can't match for people who live in Google Workspace. On macOS, it can also open Google Antigravity in one click for coding.

Where it's weaker: Google says some features arrive on macOS first and come to Windows later, so Windows users get a thinner app for now. And like Claude, it's one provider's models only.

3. Comet: when the work happens in your browser

Comet is a different shape of answer. Rather than a separate assistant window, Perplexity built a whole browser with an assistant inside it, available on Mac, Windows, iOS and Android. If most of what you ask ChatGPT about is something already open in a tab, such as an article, an inbox or a web app, Comet removes the copy-and-paste step entirely.

Where it's weaker: it only helps with what's in the browser. It won't read a local spreadsheet or work inside a desktop app the way Claude or Gemini can. Switching browsers is also a bigger commitment than installing an assistant. If you came to Perplexity for research rather than browsing, Perplexity's own app is the better starting point.

4. Msty Studio: many models, one private workspace

Msty Studio brings local and online models into one workspace. You can chat with models, organize knowledge, create media and reuse prompts, and the app is built around a privacy-first pitch. It also has the widest platform list here: installers for Apple silicon and Intel Macs, Windows on x64 and Arm, and Linux as AppImage or .deb.

This is the pick for people whose real complaint about ChatGPT's app is being locked to one provider. You can keep a cloud model for hard questions and a local model for anything sensitive, in the same window. Studio 3.0 added dedicated workspaces and Agent Mode improvements.

Where it's weaker: it's a workspace you configure, not an assistant that watches your screen. You bring the API keys and decide which models to run.

5. Jan: the open-source replacement

Jan calls itself an open-source ChatGPT replacement, and it's the most literal one on this list. It runs open models on your own computer and can also plug into online models such as ChatGPT, Claude and Gemini, so you can mix the two. The code is on GitHub under the Apache 2.0 licence, and the project is built in public.

Pick Jan if "private" means "the model runs on my machine." Nothing about your prompts needs to leave your computer when you use a local model.

Where it's weaker: local models are only as good as your hardware lets them be, and Jan's site lists memory as "coming soon," so it doesn't yet carry context between chats the way ChatGPT does. We compare it with LM Studio in Jan vs LM Studio.

6. LM Studio: a local agent, not just a local chat

LM Studio started as the easiest way to download and run local models, and it now ships Bionic, an agent built for open models. Bionic creates and edits documents, handles coding tasks and automations, and can control your computer. Voice transcription is processed locally, and LM Studio says its cloud services are zero data retention. Under the hood it runs on MLX and llama.cpp.

This is the alternative for people who liked ChatGPT's agent features but want them running on open models on their own hardware.

Where it's weaker: the best open models need serious hardware. On a typical laptop you'll trade capability for privacy.

7. Taku: run a working setup instead of building one

Every app above gives you an assistant and leaves the setup to you: which model, which tools, which prompts, which files. Taku takes a different approach. It's a desktop workspace where you run AI apps that other people have already built and tested, so you start from a configuration that works instead of assembling one.

That makes Taku a complement to most of this list more than a replacement. If you mainly want a shortcut to ask quick questions, Gemini or ChatGPT's own app will serve you better. Taku is the better fit when you keep seeing useful AI workflows and never get around to rebuilding them. You can browse what's available in the free app library. Taku is in Beta, and the Mac app is available now.

How to choose

• You use the shortcut most: Gemini for desktop.
• You want to hand off whole tasks: Claude, or ChatGPT's own app if you're staying.
• Your work lives in the browser: Comet.
• You want several providers in one window: Msty Studio.
• You want nothing to leave your machine: Jan or LM Studio with a local model.
• You want ready-made AI workflows: Taku.

FAQ

Is there a free alternative to the ChatGPT desktop app?

Yes. Jan is free and open source, and it runs open models locally, so you don't pay per message. LM Studio also runs open models on your own machine. The trade-off is that local models depend on your hardware.

Does the ChatGPT desktop app work on Windows and Mac?

Yes. OpenAI offers ChatGPT for desktop on both, and the current app combines chat, ChatGPT Work and Codex. OpenAI says existing Codex app users can update to ChatGPT and open Codex from there.

What's the best ChatGPT desktop alternative for Mac?

For the quick-ask experience, Gemini for desktop, which uses Option + Space. For task delegation and coding, Claude. For local, private models on Apple silicon, LM Studio or Jan.

Which desktop AI app can run models offline?

Jan, LM Studio and Msty Studio can all run local models. Claude, Gemini, Comet and ChatGPT's own app all need an internet connection because the models run in the cloud.

Can I use ChatGPT models inside another desktop app?

Yes. Multi-model apps such as Msty Studio and Jan let you connect cloud models, including OpenAI's, usually with your own API key. You get a different interface and still pay OpenAI's API rates for the model itself.

Is a desktop app more private than the website?

Not by default. If the model runs in the cloud, your prompts still go to the provider either way. A desktop app only becomes more private when the model runs locally, which is what Jan, LM Studio and Msty Studio make possible.