Best AI app for Mac: ChatGPT wins, and 4 of 9 big AI tools skip Intel Macs

Which AI app is best on a Mac? ChatGPT, and it still runs on Intel

Apple users already pick ChatGPT first. It topped Apple's 2025 Top Free Apps chart for iPhone, and Google Gemini, at number 10, was the only other AI chat app in that top 10. On a Mac, it also installs on more machines than its big rivals. OpenAI's Mac app help page asks for macOS 14 and "either Apple Silicon (M1 or better) or an Intel processor."

Google, Microsoft and LM Studio all draw the line at Apple silicon. Google's Gemini for macOS page puts it in one line: "Runs on Apple Silicon MacBooks and requires macOS Sequoia (15.0) or later." Copilot for Mac needs an M1 chip or later, with no Intel support, 9to5Mac reported at launch in February 2025. And LM Studio's requirements page says "Intel-based Macs are currently not supported."

That list won't get shorter. macOS 27 runs on Apple silicon Macs only, MacRumors reported on 3 June 2026, and Intel Macs get security updates for three more years. To check yours, open the Apple menu and choose About This Mac. Apple's support page says an Apple silicon Mac shows a line labeled Chip, and an Intel Mac shows one labeled Processor.

What does each Mac AI app need, and how do you open it?

Every chat app below is a free download, and each maker publishes its own Mac requirements. We read each one on 12 October 2026:

Three of these apps fight over one shortcut. ChatGPT, Gemini and Copilot all default to Option + Space, so a Mac with two of them installed needs one moved. Microsoft's Copilot for macOS help page says how: "To change the shortcut, go to Account > Keyboard Shortcut and enter a different key combination." Gemini lets you change its keys in the app's settings. Claude stays out of the fight. Anthropic's quick entry page opens Claude with a double tap of Option.

Copilot is also the only one of the big AI chat apps that you can get from the Mac App Store. An App Store search on 12 October 2026 found no Mac app sold by OpenAI, Anthropic or Google. Perplexity now ships its Mac app as a direct download, heise reported on 13 May 2026, and its old App Store listing no longer loads. That changes where you cancel. Apple bills a plan you buy inside a Mac App Store app. OpenAI and Anthropic bill the plans you buy on their own sites, so you cancel those there.

Is there a ChatGPT app for Mac? Yes, free from OpenAI's site

Yes. OpenAI's ChatGPT app for Mac is free from chatgpt.com/download, and the page picks the right installer for you. OpenAI's help center says it "detects whether your Mac uses Apple Silicon or an Intel processor." You won't find it in the Mac App Store.

The app adds two things the browser can't do. The Chat Bar opens over any app when you press Option + Space. Work with Apps lets ChatGPT read from coding tools like IDEs and terminals, and from Apple Notes. Everything else is the account you already use on the web, with the same chats and projects.

You don't need the app at all for quick jobs on a newer Mac. Apple's Apple Intelligence requirements page, dated 14 September 2026, lists a ChatGPT extension for Mac that hands Siri and Writing Tools requests to ChatGPT. It needs a Mac with M1 or later. Apple Intelligence also wants up to 8 GB of free storage, or up to 14 GB on an M3 or later Mac with at least 12 GB of unified memory. Our Apple Intelligence vs ChatGPT test shows which jobs Apple's own tools win.

Which Mac AI app is best for what you do?

Each of these apps wins for one kind of Mac user, and each one loses somewhere. The first six are general assistants. The last eight do one job inside macOS. Chat app prices are the in-app prices on Apple's US listings, except Claude Pro, from Anthropic's pricing page. We read all of them on 12 October 2026:

This page stops at 14 for a reason. The two longest lists on page one, from Setapp and Timing, each name 21 Mac AI apps and agree on only two of them: Elephas and BoltAI. Setapp's list also carries a photo editor, a spreadsheet app and a calculator. Timing's carries its own time tracker. We kept the apps a person choosing an AI assistant for a Mac actually compares.

Whizi, which publishes this page, has no native Mac app, and that's where it loses here. You use it at whizi.io in Safari or Chrome. Apple's Whizi listing also lets the iPhone app install on a Mac with an M1 chip or later, under the label "Designed for iPhone. Not verified for macOS." What it does differently is put several model families in one account, out of a catalog of 280+ models. Pro, at $29.99 a month, reaches Claude Opus, Claude Sonnet, ChatGPT Sol and Gemini Flash, with side by side model chats.

Weighing the two biggest assistants? Claude vs ChatGPT compares them job by job, and the best AI app for iPhone ranks the same apps by App Store data.

What is the best free AI app for Mac? ChatGPT, or a local model

ChatGPT is the best free AI app for Mac. OpenAI's pricing page lists "Unlimited text chats" on the Free plan as of October 2026, with uploads and image creation limited. Claude's Free plan includes "Chat on web, desktop, and mobile," per Anthropic. Gemini's Mac app is free too. Google's page says "Selected features available with Google AI subscription to users aged 18+."

For AI that never leaves your Mac, LM Studio and Ollama are free and run open models locally. LM Studio needs macOS 14 and recommends 16 GB of RAM, though it says 8 GB Macs may work with smaller models. Ollama's Mac docs list macOS 14 and "Apple M series (CPU and GPU support) or x86 (CPU only)." So it does run on an Intel Mac, but it's slow there. Our open source LLM guide covers which models fit in how much memory, and the AI chatbot privacy comparison covers what the cloud apps keep.