ChatGPT Desktop Client for Mac

What is ChatGPT

What ChatGPT actually is

ChatGPT is the AI assistant made by OpenAI and the one that started the whole AI boom when it launched in late 2022. Within five days of launch it had a million users. Within two months it hit 100 million. Nothing had spread that fast before. Today it is the most recognizable AI product in the world, used by students, writers, business owners, developers, and curious people in almost every country.

GPT-6 is OpenAI's newest model family. Think of ChatGPT as the app and the model as the brain inside it. Ordinary chats still default to GPT-5.6 on every plan, while GPT-6 runs ChatGPT Work and Codex from the Plus plan up, and Pro, Business and Enterprise can also pick it in chat as GPT-6 Pro. The current version is significantly smarter than the original, it writes better, reasons through harder problems, follows complex instructions reliably, and makes far fewer embarrassing mistakes. Most people who tried ChatGPT two years ago and walked away would be surprised by how much it has improved.

What makes ChatGPT work well for everyday use is its versatility. It can help you draft an email, summarize an article, plan a trip, explain a confusing document, write a cover letter, come up with birthday gift ideas, or just answer questions you feel awkward Googling. You do not need to be technical to get value from it. Most useful AI interactions are simple conversations.

ChatGPT vs GPT-6: ChatGPT is the product, the app you log into. GPT-6 is a model family, the part doing the thinking. In Fello AI, you get direct access to GPT-6 alongside Claude, Gemini, and 20+ other models, all without switching apps.

200M+

Weekly users worldwide

#1

Most-used AI tool on earth

50+

Languages it writes fluently

2022

Year it changed everything

ON YOUR MAC

3 ways to use ChatGPT on Mac

01

Fello AI Recommended

Download once and get GPT-6 alongside 20+ other frontier models including Claude 5.5, Gemini 4 Argon, Grok 4.7, DeepSeek V4.1, and Kimi K3. It is a native Mac app, about a 50 MB download, and needs no API key. Works on any Mac running macOS 12 or later, including Intel Macs, and lives in your dock. One subscription covers your iPhone and iPad too.

02

Official ChatGPT website

Open chatgpt.com in Safari or Chrome. No download required and you get the full ChatGPT experience in a browser. The downside is it's browser-only, limited to GPT models, and gets buried under other tabs. For GPT-6 you need ChatGPT Plus ($20/month), and even then only inside ChatGPT Work and Codex. Ordinary chats get it from the Pro plan up.

03

Official ChatGPT Mac app

Since July 9, 2026, OpenAI's main Mac app is a new desktop app that combines Chat, Work and Codex in one window. It is built on Electron rather than as a native Mac app, and it is a 1.5 GB bundle. The previous native app lives on as ChatGPT Classic, which OpenAI says continues to be supported. The new app downloads from chatgpt.com rather than the Mac App Store and needs macOS 14 Sonoma or later on Apple silicon or Intel. Either way, you're locked into GPT models only. Free and Go users get GPT-6 Luna in it as of September 22. Since August 20, 2026 it also has an Apple Messages plugin that reads and sends your iMessage, SMS and RCS conversations, something Fello AI does not do. It runs on Apple silicon only, inside ChatGPT Work and Codex rather than a regular chat, and it needs Full Disk Access, your contacts and Automation control of Messages.

Why Fello AI

GPT-6 without the browser tab

ChatGPT is great for everyday questions, reasoning, and writing, and Fello AI gives it to you as a native Mac app. The difference is choice: when ChatGPT isn't the best fit, switch to Claude, Gemini, or Grok in one click, generate AI images, and turn any answer into a real PowerPoint, Excel, or Word file. All of this for a fraction of ChatGPT's price.

Native Mac performance

Fello AI is a native Mac app, built for Apple silicon and Intel alike. It is about a 50 MB download, where OpenAI's new ChatGPT app is a 1.5 GB Electron bundle. It launches instantly and lives in your dock like any proper Mac app, on macOS 12 and later.

Works on older Macs too

The official ChatGPT Mac app requires macOS 14 Sonoma. Fello AI runs on macOS 12 Monterey and later, on Intel and Apple silicon, so a Mac that stopped at Monterey or Ventura still gets full GPT-6 access.

20+ models in one app

GPT-6 is excellent, but so is Claude 5.5 for writing and Gemini 4 Argon for research. Fello AI lets you use all of them without managing separate subscriptions or switching between apps.

Side by side

Fello AI vs ChatGPT official app

Feature	Fello AI	ChatGPT (browser / Mac app)
Price	Free tier + $11.99/mo or $89.99/yr	$20/mo (Plus)
Access to GPT-6	✓ Yes	✓ Partly (Work and Codex on Plus, chat on Pro)
Native Mac app	✓ Native, about 50 MB	✗ Electron since July 2026 (ChatGPT Classic is native)
Models available	✓ GPT-6, Claude 5.5, Gemini 4 Argon, Grok 4.7, DeepSeek, Kimi K3 and more	✗ GPT models only
Image generation	✓ GPT Image 2.5, Nano Banana 2.1, Seedream 5, FLUX 3	ChatGPT Images 2.5 only
PDF support	✓ Up to 16 PDFs at once	Yes (limited on Free)
Podcast generation	✓ Yes	✗ No
Web research	✓ Web, YouTube, X, booking sites	Web only (all plans)
iPhone and iPad	✓ Yes, same app	✓ Separate app
macOS requirement	✓ macOS 12 (Monterey)	macOS 14 (Sonoma) for Mac app

Native or Electron

Native ChatGPT apps for Mac compared

A native Mac app is written with Apple's own frameworks, such as AppKit or SwiftUI. An Electron app bundles its own copy of the Chromium browser and runs a web interface inside it, so it downloads bigger and feels less like a Mac app. On July 9, 2026 OpenAI replaced its native ChatGPT app with an Electron build and kept the old one as ChatGPT Classic. Here is how the ways to use GPT on a Mac compare.

App	Built with	API key	iPhone & iPad	Price
Fello AI	✓ Native	✓ Not needed	✓ Same subscription	Free tier, $11.99/mo
ChatGPT	✗ Electron (1.5 GB)	Not needed (ChatGPT account)	Separate ChatGPT app	Free; Plus $20/mo
ChatGPT Classic	Native (159 MB)	Not needed (ChatGPT account)	Separate ChatGPT app	Same ChatGPT plans
BoltAI	Native (SwiftUI, AppKit)	Your own OpenAI key	From the $99 Pro licence	$79 once + API usage
MindMac	Native	Your own OpenAI key	Mac only	One-time licence + API usage

John Gruber measured the two OpenAI apps at Daring Fireball: ChatGPT Classic is a 159 MB bundle and the new combined app a 1.5 GB Electron bundle. Fello AI's App Store download is about 50 MB. OpenAI's help page lists macOS 14 on Apple silicon or Intel for the new app, and Fello AI needs macOS 12. Fello AI is our app, so weigh that, but it is the only native option in this table that combines no API key, GPT-6 next to Claude, Gemini and 20+ other models, and one subscription across Mac, iPhone and iPad. BoltAI and MindMac suit people who already pay OpenAI for API access.

In depth

A closer look at GPT-6

Understands what you actually mean

GPT-6 does not just pattern-match your words. It reads for intent. Give it a vague prompt and it will ask for clarification. Give it a complex one and it breaks it into steps before responding.

Writes like a professional

Whether you need a formal email, a casual caption, or a legal-sounding letter, GPT-6 adjusts its tone to match. It is the model most people reach for when the writing quality actually matters.

Handles images and documents

Upload a photo, screenshot, PDF, or chart and GPT-6 can read, describe, and reason about what it sees. Useful for anything from analyzing a receipt to explaining a graph from a report.

Works in over 50 languages

ChatGPT translates, writes, and thinks in more than 50 languages. This makes it one of the most accessible AI tools in the world for non-English speakers.

Model comparison

How does ChatGPT compare to other AIs?

The AI landscape in 2026 is crowded with strong contenders. Gemini 3.8 Flash pairs speed with a 1M-token context window, Claude 5 excels at complex writing and long-form analysis, and Grok 4.7 brings real-time data from X. Where does GPT-6, OpenAI's newest model, actually stand?

GPT-6 is the strongest model for everyday use, computer-control tasks, and knowledge-work documents. It is built to operate software and finish real desktop work, not just answer questions.

VS

ChatGPT vs Gemini

Gemini is the researcher. GPT-6 is the operator.

Google's Gemini 3.8 Flash is one of the most factually reliable models available. It leads on academic reasoning benchmarks and ships with native Google Search grounding for real-time fact access. It is the safest default for research, scientific writing, and any task where factual accuracy matters most.

GPT-6 takes a different approach. Where Gemini focuses on accuracy and reasoning depth, GPT-6 excels in execution and computer use. It can operate software, fill out forms, manage files, and complete multi-step desktop workflows autonomously, and it is especially strong on knowledge-work documents.

Use Gemini 3.8 Flash for research, scientific accuracy, and long-context document analysis. Use ChatGPT when you want the model to operate software, complete documents, or execute multi-step desktop tasks.

VS

ChatGPT vs Claude

Claude is the writer. GPT-6 is the executor.

Anthropic's Claude 5 is one of the strongest models for complex writing and structured long-form work. It produces the most natural, well-structured text of any major model, follows detailed instructions without drifting, and handles enormous documents with exceptional coherence.

GPT-6 approaches the same tasks differently. Instead of deep planning and long-form precision, GPT-6 prioritizes momentum and tool use. It is stronger for developers who need rapid prototyping, IDE automation, and direct computer-use tasks like UI navigation.

Choose Claude 5 for complex multi-file writing, structured planning, and long-form professional documents. Choose ChatGPT for rapid prototyping, IDE automation, and tool-heavy agentic workflows.

VS

ChatGPT vs Grok

Grok is the brainstormer. GPT-6 is the finisher.

xAI's Grok 4.7 leans on real-time data from X and the broader web. That makes Grok 4.7 useful for brainstorming, current events, and creative tasks where divergence from the expected answer is a feature. It is also more openly opinionated and less restricted in the topics it will engage with.

GPT-6 is less stylistically experimental, but more reliable once tasks become technical or multi-step. It maintains better internal consistency across longer workflows, especially in code, computer-use tasks, and structured document work.

Use Grok 4.7 for brainstorming, real-time information, and creative work where unexpected ideas matter. Use ChatGPT when correctness, execution, and follow-through matter.

VS

ChatGPT vs Perplexity

Perplexity finds the information. GPT-6 does something with it.

Perplexity is optimized for search-first answers with citations. It shines when the goal is to verify facts, explore sources, or quickly understand a topic with references. It is essentially an AI-powered research tool rather than a general-purpose assistant.

GPT-6 is stronger at transformation and execution: turning information into code, plans, summaries, finished documents, or completed software workflows.

Use Perplexity to gather facts and sources. Use ChatGPT to act on those facts.

VS

ChatGPT vs DeepSeek

DeepSeek is the open alternative. GPT-6 is the established standard.

DeepSeek V4.1 is among the strongest open-weight models, with reasoning and coding abilities competitive with frontier closed models. Its API pricing undercuts most proprietary models by a wide margin. For developers building cost-sensitive automation or organizations with data-privacy requirements, it is a genuinely viable alternative.

GPT-6 still leads in consistency, ecosystem integration, and computer-use capabilities, especially in production-level tasks where predictability matters. It is also more deeply integrated with third-party tools and the broader macOS environment.

Use DeepSeek when cost, privacy, or self-hosting matter most. Use ChatGPT when reliability, ecosystem, and execution quality are the priority.

VS

ChatGPT vs other models

No single model wins every task.

Fello AI also gives you Qwen for math and coding, GLM as a strong open model, Kimi as a top open-weight model, and Muse Spark as Meta's cheap model for heavy coding. Each is a click away, right beside ChatGPT.

Metric	GPT-6	Claude 5	Gemini 3.8 Flash	Grok 4.7
Reasoning	Excellent	Excellent	Very good	Strong
Coding	Top tier	Top tier	Very good	Good
Writing	Very good	Excellent	Good	Good
Image gen	ChatGPT Images 2.5	None	Nano Banana 2	Grok Imagine
Speed	Fast	Moderate	Very fast	Fast
Context window	1M tokens	1M tokens	1M tokens	500K tokens
Best for	All-round work, coding, operators	Complex writing, long-form	Speed, large docs, research	Brainstorming, real-time info

What Fello AI offers

What you can actually do in Fello AI

Use the right model for the task

Different models are better at different kinds of work. In Fello AI, you switch between ChatGPT, Claude, Gemini, Grok, and more without leaving the app or rebuilding your workflow. Compare outputs, move faster, and use the model that fits instead of forcing everything through one tool.

Fello AI supports PDF, Word, Excel, PowerPoint, images, and many more file formats

Chat with PDFs, images, and Office files

Upload PDFs, images, Excel sheets, slide decks, and documents, then ask for summaries, explanations, rewrites, or extracted insights. This makes Fello AI much more useful for study, research, reporting, and day-to-day professional tasks than a plain text chatbot.

Fello AI generating a downloadable PDF report from a spreadsheet

Create real documents you can download

Generate PowerPoint presentations, Excel spreadsheets with formulas, Word documents, and PDFs, then download and use them immediately. That turns AI from a brainstorming tool into something much closer to a real productivity workspace.

Fello AI web search results with cited sources

Search the web and keep working in one place

When you need current information, Fello AI searches the web with cited sources instead of forcing you to leave the app and manually piece things together. Especially useful when researching a topic, checking facts, or turning fresh information into a finished document.

One workflow across Mac, iPhone, and iPad

Fello AI is native on all Apple devices, so you keep the same app, the same models, and the same workflow whether you're on your Mac at a desk or on your phone on the go. No separate setup, no switching tools, no restarting the context.

For professionals

Fello AI gives professionals a practical way to use ChatGPT, Claude, Gemini, Grok, and other top models across Mac, iPhone, and iPad as part of one consistent workflow. Analyze PDFs, Word files, Excel sheets, presentations, and images, then turn the result into real downloadable documents for client work, internal workflows, and day-to-day execution.

For students

Fello AI helps students handle everyday academic work more efficiently. Summarize readings, explain difficult topics, compare answers across models, and work with PDFs, slides, notes, and study materials in one place. Instead of relying on a single AI answer, use the model that fits the task and move from quick explanations to deeper research without jumping between apps.

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FAQ

Common questions about ChatGPT on Mac

Not any more. Since July 9, 2026 OpenAI's main ChatGPT Mac app is built on Electron and combines Chat, Work and Codex in one window. The previous native app was renamed ChatGPT Classic, and OpenAI says it continues to be supported. If you want a native Mac app with GPT-6, Fello AI is about a 50 MB download, needs no API key, and adds Claude, Gemini and 20+ other models on one subscription for Mac, iPhone and iPad.

No. You can access GPT-6 through chatgpt.com in any browser, through the official Mac app, or through Fello AI. Fello AI is the only option that also gives you Claude, Gemini, Grok, and other models in the same native Mac app, and it runs on macOS 12 Monterey, two versions older than the official app needs.

GPT-6 is OpenAI's current flagship model, several generations ahead of GPT-4o. It has significantly stronger reasoning, better instruction-following, improved coding performance, and more reliable outputs on complex multi-step tasks. GPT-6 also handles longer documents more reliably and is less likely to make up information.

Yes, since July 2026. OpenAI's help page lists macOS 14 Sonoma or later with either Apple silicon (M1 or better) or an Intel processor for the new ChatGPT desktop app. If your Mac runs macOS 12 Monterey or 13 Ventura, Fello AI supports both, on Intel and Apple silicon.

Fello AI gives you access to the current frontier GPT models available through the OpenAI API. GPT-6 is the latest and most capable option. You can switch between models at any time within the same conversation, including switching over to Claude 5.5 or Gemini 4 Argon for a second opinion.

Fello AI starts free and offers a paid plan at $11.99 per month or $89.99 per year. That gives you access to GPT-6 and 20+ other frontier models, image generation, PDF analysis (up to 16 files), podcast creation, and web research. ChatGPT Plus, by comparison, is $20 per month and covers GPT models only.

Yes. Fello AI supports image generation using GPT Image 2.5, Nano Banana 2.1, Seedream 5, and FLUX 3. You can describe what you need in a chat and generate images without switching to a separate app. The official ChatGPT Mac app only supports ChatGPT Images 2.5.

Yes. In Fello AI you can upload up to 16 PDF files at once and ask GPT-6 (or any other model) to read, summarize, compare, or extract information from them. This is useful for contracts, research papers, financial documents, or any set of files you need to work across simultaneously.

Yes. Fello AI is the same app across Mac, iPhone, and iPad. Your conversations sync across devices so you can start something on your Mac and continue on iPhone, or the other way around. All models including GPT-6 are available on all platforms.

Fello AI includes 20+ models: Claude 5.5, Gemini 4 Argon, Grok 4.7, DeepSeek V4.1, Kimi K3, Qwen 3.8 Max, Perplexity, Mistral, and more. You can switch between them in any conversation to compare answers or pick the right model for each task.

Yes. Fello AI includes web research that can search the web, YouTube, X (Twitter), and booking sites. ChatGPT's own search covers the web on every plan, including Free, so the difference is the extra sources. You can ask GPT-6 to research a topic and get cited, up-to-date answers.

The best way to use
ChatGPT on your Mac

What ChatGPT actually is

3 ways to use ChatGPT on Mac

GPT-6 without the browser tab

Fello AI vs ChatGPT official app

Native ChatGPT apps for Mac compared

A closer look at GPT-6