How much time will I actually save with Fazm?

Most users report saving 45-90 minutes per day on repetitive tasks. The biggest time savings come from email management (drafting replies, sorting, archiving), form filling (expense reports, CRM updates, applications), research (comparing products, gathering data from multiple sites), and social media (cross-posting, scheduling, replying). For example, booking a flight that normally takes 10 minutes of clicking through airline sites takes a single voice command with Fazm. Filing an expense report that requires opening a PDF, extracting numbers, and entering them into a spreadsheet becomes one spoken sentence. The more repetitive and multi-step your daily work is, the more time you get back.

What exactly can Fazm control?

Fazm controls everything you can do manually on your Mac. That includes mouse movements and clicks, keyboard typing, browser navigation and form filling, app switching, file management in Finder, and system-level actions. It uses direct browser DOM control for web interactions - meaning it reads and manipulates the actual page structure rather than taking screenshots and guessing where to click. For native macOS apps, Fazm uses accessibility APIs to interact with buttons, menus, text fields, and other UI elements. This works across any application: Chrome, Safari, VS Code, Slack, Figma, Terminal, Mail, Calendar, and more.

How is Fazm different from ChatGPT or Claude?

Chatbots like ChatGPT and Claude give you answers in a conversation window. Fazm takes action directly on your computer. When you say 'reply to Sarah's email,' Fazm opens your email app, finds Sarah's message, writes a contextual reply, and sends it. A chatbot would tell you what to write, but you still have to do all the clicking and typing yourself. Fazm moves your mouse, types on your keyboard, clicks buttons, and navigates between apps. It is a computer agent, not a chat assistant.

How does the memory layer work?

Fazm builds a personal knowledge graph by extracting information from your files, browsing history, conversations, and daily activity. Over time, it learns your contacts (names, emails, relationships), accounts and credentials, preferences (formatting, tone, scheduling habits), and frequently used workflows. In your first week, you might say 'Reply to Sarah's email, she's my cofounder, her email is sarah@acme.com.' By week four, you just say 'Reply to Sarah' because Fazm already knows who she is. By week eight, Fazm can draft the reply before you even ask. All of this data stays locally on your Mac - your knowledge graph never leaves your machine or gets sent to any cloud service.

Is Fazm safe? Can it mess up my computer?

Safety is built into every layer of Fazm. You watch every action in real-time on your screen - Fazm moves your mouse and types visibly, so there is nothing hidden. You can stop any action at any point by pressing a keyboard shortcut. Fazm also shows you what it plans to do before executing destructive actions like deleting files or sending emails, giving you a chance to confirm or cancel. Because Fazm is open source, the code is fully auditable on GitHub. There is no hidden behavior, no background processes making changes you cannot see, and no actions that bypass your screen.

What platforms does Fazm support?

Fazm currently supports macOS, running natively on both Apple Silicon (M1, M2, M3, M4) and Intel Macs. It is built with Swift and uses macOS-specific frameworks like ScreenCaptureKit for screen analysis and Accessibility APIs for app control, which is why macOS is the primary platform. Windows and Linux support are on the roadmap but do not have release dates yet. You can also control your Mac remotely from your phone using Fazm Remote, which gives you voice access to your desktop while you are away from your computer.

How does Fazm voice input work?

One keyboard shortcut activates push-to-talk. Hold the key, speak naturally about what you need done, and release. Fazm transcribes your speech locally using on-device models, so there is no network latency for the voice recognition step. You do not need wake words like 'Hey Siri' or 'OK Google' - just press and talk. You can also type commands into the floating toolbar if you prefer text input. Fazm understands natural language, so you do not need to memorize specific commands. Say 'book me a flight to Tokyo next Thursday' or 'find the cheapest AirPods on Amazon' and Fazm figures out the steps.

Is my data sent to the cloud?

Fazm processes screen analysis and memory entirely on your machine. The personal knowledge graph, file indexing, and screen capture all run locally. The only data that leaves your Mac is the intent - a text description of what you want to accomplish, which is sent to the AI model (Claude or GPT) for action planning. Your actual screen content, file contents, browsing history, and personal knowledge graph never leave your computer. Fazm is also open source, so you can verify exactly what data is transmitted by reading the code on GitHub. For users who need complete air-gapped operation, local model support is planned.

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ChatGPT Atlas vs Perplexity Comet vs Fazm: Which AI Agent Is Right for You?

Fazm Team·March 16, 2026·16 min read

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ChatGPT Atlas vs Perplexity Comet vs Fazm: Which AI Agent Is Right for You?

The AI agent space has exploded in 2026. We have gone from chatbots that give answers to agents that take action - clicking buttons, filling forms, navigating websites, and controlling your computer. Three tools have emerged as the leading options, and each takes a fundamentally different approach.

ChatGPT Atlas is OpenAI's bet on making the browser smarter. Perplexity Comet brings AI-powered search into a dedicated browser. And Fazm skips the browser entirely and controls your whole desktop.

If you are evaluating AI agents right now, this guide will help you understand the real differences - not marketing copy - so you can pick the right tool for how you actually work.

Quick Overview: What Each Tool Actually Is

ChatGPT Atlas

Atlas is OpenAI's Chromium-based web browser with ChatGPT built in. It launched in late 2025 for macOS and features a sidebar assistant that can summarize pages, answer questions, and rewrite text. The real draw is agent mode, available to ChatGPT Plus subscribers at $20/month, where ChatGPT takes over the browser cursor to complete multi-step web tasks like booking travel, filling out forms, and navigating complex workflows.

Atlas works by taking screenshots of the browser, sending them to OpenAI's servers for analysis, and translating the AI's decisions into mouse clicks and keyboard actions. It is limited to web pages inside its own browser window - it cannot see or interact with anything else on your computer.

Perplexity Comet

Comet is Perplexity's AI-powered Chromium browser, launched in mid-2025. It has two AI modes: "Comet Assistant," a sidecar panel for asking questions and getting summaries of open tabs, and "Comet Agent," which takes over the cursor for multi-step web tasks like shopping, booking, and form filling. Its biggest strength is built-in Perplexity search - you get AI-synthesized answers with source citations directly in the browser.

Comet offers limited free searches, but full access to agent mode and unlimited search requires Perplexity Pro at $20/month or Max at $200/month. It is available on macOS, Windows, Android, and iOS, giving it the broadest platform support of the three. Like Atlas, it is confined to web pages inside its own browser.

Fazm

Fazm is an open-source AI computer agent for macOS. Unlike Atlas and Comet, Fazm is not a browser. It sits as a floating toolbar on your desktop and controls your entire computer - any app, any window, any file - all triggered by voice commands. You press one keyboard shortcut, speak naturally, and Fazm moves your mouse, types on your keyboard, navigates your browser, and operates native apps like VS Code, Figma, Slack, and Finder.

Fazm uses direct DOM control for browser tasks instead of the screenshot-and-guess approach, which means faster and more reliable web automation. It builds a personal knowledge graph from your files, conversations, and contacts that stays locally on your Mac. Screen analysis runs on your machine, and the entire codebase is open source. It is free.

Feature-by-Feature Comparison

Here is a comprehensive breakdown of how the three stack up across the dimensions that matter most.

| Feature | ChatGPT Atlas | Perplexity Comet | Fazm | |---------|--------------|-----------------|------| | Scope | Browser only | Browser only | Entire macOS desktop | | Primary input | Text sidebar | Text + conversational UI | Voice + text (push-to-talk) | | Voice support | None | Limited voice mode | Native push-to-talk | | Browser control method | Screenshot-based | Screenshot-based | Direct DOM control | | File access | None (sandboxed) | None (sandboxed) | Full file indexing + knowledge graph | | Memory/context | Conversation context only | Current tabs only | Persistent knowledge graph | | Desktop app control | None | None | Any macOS app | | Built-in web search | Via ChatGPT | Perplexity search (best in class) | Via any browser | | Pricing | $20/mo (ChatGPT Plus) | Free limited / $20/mo Pro / $200/mo Max | Free and open source | | Privacy model | Pages sent to OpenAI | Data sent to Perplexity servers | Local screen processing | | Open source | No | No | Yes | | Platform support | macOS | macOS, Windows, Android, iOS | macOS (Windows planned) | | Requires browser switch | Yes - must use Atlas browser | Yes - must use Comet browser | No - works with any browser |

A few things jump out from this table. Atlas and Comet are remarkably similar in their core architecture - both are Chromium browsers with an AI sidebar and agent mode that automates web tasks. The biggest difference between those two is Comet's superior search capabilities and broader platform support. Fazm occupies a different category entirely as a desktop-wide agent rather than a browser.

Deep Dive: Browser Automation

All three tools can automate web tasks, but the way they do it matters more than you might think.

How Atlas and Comet Handle Web Tasks

Atlas and Comet both use a screenshot-based approach. The agent captures a screenshot of the current page, sends it to a vision model for analysis, receives instructions on where to click, moves the cursor, clicks, and then takes another screenshot to see what happened. This screenshot-analyze-click loop repeats for every single action.

The problem is speed and reliability. Each cycle takes several seconds because you are waiting for an image to upload, get processed by a vision model, and return coordinates. And because the agent is guessing where elements are based on pixel positions in a screenshot, it can miss targets - especially on dynamic pages where elements shift around, or on pages with overlapping elements that look similar.

In practice, you will see the cursor hesitate, sometimes click the wrong thing, and occasionally get stuck in a loop where it keeps trying to click an element that has moved. Both Atlas and Comet have improved their accuracy over time, but the fundamental limitation of screenshot-based control remains.

How Fazm Handles Web Tasks

Fazm takes a different approach through direct DOM control via a browser extension. Instead of taking a screenshot and guessing where to click, Fazm interacts with the actual HTML elements on the page - the buttons, input fields, links, and menus that make up the page structure. It knows exactly what each element is, where it is, and what it does.

This means actions execute at native speed. Clicks happen instantly. Form fields fill immediately. Navigation is seamless. There is no screenshot-analyze-click loop, so there is no delay between actions and no risk of clicking the wrong element because a page layout shifted.

For a practical example, consider booking a flight. With Atlas or Comet, the agent screenshots the travel site, identifies the departure field, clicks it, waits for the dropdown, screenshots again, finds your city, clicks it, waits, screenshots again, and so on for every single field. With Fazm, it directly interacts with the form elements, fills in all the fields, and moves through the booking flow at the speed your browser can render pages.

The tradeoff is that Fazm's DOM approach requires a browser extension, while Atlas and Comet work within their own built-in browser without any extension needed.

Deep Dive: Privacy and Data Handling

This is where the three tools diverge significantly, and it is a dimension worth thinking carefully about - especially since AI agents can see everything on your screen.

Atlas: Cloud Processing Through OpenAI

When Atlas automates a web task, screenshots of whatever you are looking at get sent to OpenAI's servers. That means your email content, your banking pages, your medical records - anything visible in the browser during an agent session - is uploaded for processing. OpenAI's data policies apply to everything the agent sees.

For personal tasks like booking a flight, this might be acceptable. For anything involving sensitive business data, client information, or financial records, it is worth pausing to consider what you are comfortable uploading to a third party.

Comet: Cloud Processing Through Perplexity

Comet operates similarly to Atlas in that your browsing data, queries, and page content are sent to Perplexity's servers for processing. The browsing data also feeds into Perplexity's systems, which may be used to improve their models (subject to their privacy policy). Like Atlas, this is a standard cloud AI model, but you should be aware that your browsing sessions are not private during agent use.

Fazm: Local-First Architecture

Fazm processes screen data locally on your machine before sending anything to the cloud. Only the intent - what you want to do - gets sent to an AI model for action planning. Your screen content, documents, emails, and knowledge graph never leave your Mac.

This matters if you work with sensitive information, which most professionals do. Your screen might show client contracts, financial data, passwords, personal messages, or proprietary code at any given time. With Fazm's local-first architecture, that content stays on your machine.

The entire codebase is also open source on GitHub, so you can audit exactly how your data is handled. There is nothing hidden behind a proprietary wall.

The growing conversation around AI agent privacy is not hypothetical. As these tools get more powerful and see more of our digital lives, the question of where that data goes becomes increasingly important. Local processing is not just a technical detail - it is a fundamental design choice about who controls your information.

Deep Dive: Voice and Input Methods

How you interact with an AI agent significantly affects how useful it is in practice. Typing instructions is fine when you are sitting at your desk focused on one task. But real work is messier than that - you are on a call, you are walking around, you are thinking through a problem and want to delegate a task without breaking your flow.

Atlas: Text-Only Sidebar

Atlas requires you to type every instruction into a sidebar chat. There is no voice input at all. This means every interaction requires your hands on the keyboard, your eyes on the chat panel, and a context switch from whatever you were doing. For quick one-off tasks it is fine. For frequent use throughout the day, the friction adds up.

Comet: Text-First with Limited Voice

Comet's primary interface is the Comet Assistant sidebar where you type queries. It has a limited voice mode, but voice cannot trigger agent actions - it is mainly for dictating search queries. The core interaction model is still keyboard-driven.

Fazm: Voice-First Push-to-Talk

Fazm was built around voice from the start. One keyboard shortcut activates push-to-talk. You speak naturally - "Reply to Sarah's email saying I'll be there at 3" or "Book a flight to Tokyo next Thursday" - and Fazm converts your intent into computer actions. No wake words, no delay, no rigid command syntax. Just press, speak, and let it work.

For hands-free productivity, this is a significant advantage. You can delegate tasks while on a phone call, while reviewing a document, or while your hands are occupied. Voice input also tends to be faster than typing for complex instructions, especially when you are describing a multi-step workflow.

The memory layer amplifies this further. Early on you might need to be specific: "Reply to Sarah Chen's email at sarah@acme.com." After Fazm learns your contacts and preferences, you just say "Reply to Sarah." By week eight, it starts drafting contextually appropriate replies before you even ask.

Deep Dive: Scope and Capabilities

This is the most important difference between the three tools, and it is worth being very clear about what "scope" means in practice.

Atlas and Comet: Browser Only

Both Atlas and Comet are web browsers. Their AI agent can only see and control web pages inside their own browser window. This means:

No native app control. They cannot interact with VS Code, Slack, Figma, Terminal, Finder, Preview, or any other desktop application.
No file access. They cannot read, write, or organize files on your computer.
No cross-app workflows. They cannot take data from an email and put it in a spreadsheet, or take a design from Figma and reference it in a code editor.
Browser lock-in. You must switch to their browser to use agent features. Your Chrome extensions, Safari bookmarks, and Arc spaces do not come along.

For purely web-based tasks - online research, booking travel, filling out web forms, shopping - this is workable. But most real work is not purely web-based. It spans native apps, local files, and desktop tools that no browser can reach.

Fazm: Full Desktop Control

Fazm operates at the operating system level. It controls your mouse, keyboard, any browser (Chrome, Safari, Arc, Firefox), and any native application. This opens up a fundamentally different set of capabilities:

Cross-app workflows. "Extract the Q3 numbers from this PDF and put them in a Google Sheet" involves Preview (or any PDF reader), Google Sheets, and data transfer between them. Fazm handles the entire chain.
Native app automation. "Refactor the auth module in VS Code" or "Create a new Figma frame with these dimensions" or "Send a Slack message to the engineering channel" - these are tasks that browser-only agents simply cannot do.
File management. "Organize my Downloads folder" or "Find all invoices from last month" requires file system access that Atlas and Comet do not have.
Calendar and email integration. "Schedule a meeting with Jake and Sarah this week" works through your actual calendar app and email client, not just their web versions.

The difference is not incremental - it is categorical. A browser-only agent automates maybe 30-40% of the tasks you do on a computer. A desktop-wide agent can automate nearly everything.

Who Should Use What?

After examining the details, here is a practical decision guide based on how you actually work.

Choose ChatGPT Atlas if:

You are already a ChatGPT Plus subscriber and want to get more value from that subscription
Your work is primarily web-based - you spend most of your day in a browser
You mainly need help with tasks like web research, booking travel, and filling out online forms
You are comfortable with OpenAI's data handling practices
You do not need voice control or desktop-wide automation
You are okay switching to a new browser

Atlas is a solid browser automation tool backed by OpenAI's powerful models. If your workflow is browser-centric and you already pay for ChatGPT Plus, it is the path of least resistance.

Choose Perplexity Comet if:

Research and web search are your primary use cases
You want the best AI-powered search experience available - Comet's built-in Perplexity search is genuinely excellent
You need cross-platform support (Windows, Android, iOS in addition to macOS)
You want a browser that makes web browsing smarter overall, not just for automation
You are fine with a subscription for full access ($20/month Pro or $200/month Max)
You do not mind switching your default browser to Comet

Comet's strength is search. If you spend a lot of your day researching, gathering information, and synthesizing data from the web, Comet's search-first approach delivers real value. The agent mode is a bonus on top of a genuinely useful AI browser.

Choose Fazm if:

You want full desktop automation, not just browser automation
You work across multiple native apps - VS Code, Figma, Slack, Terminal, email clients, spreadsheets
Privacy matters to you and you want screen data processed locally
You prefer voice control for hands-free productivity
You value open source and want to inspect how your data is handled
You do not want to switch browsers or pay a monthly subscription
You want an AI that builds a persistent knowledge graph and gets smarter over time

Fazm is the right choice if you want an AI agent that works the way you do - across your entire computer, not just inside a browser tab. The voice-first interface, local processing, and open-source model address the practical and philosophical concerns that many users have with cloud-only AI agents.

The Tradeoffs Are Real

To be fair, each tool has areas where it falls short.

Atlas benefits from OpenAI's best-in-class language models and broad research ecosystem. If you need the most capable AI reasoning behind your agent, Atlas plugs directly into GPT. It is also the most familiar option for the millions of people who already use ChatGPT daily.

Comet has the best search experience of the three. Perplexity's search with citations and source verification is genuinely useful and something neither Atlas nor Fazm replicate natively. Comet also wins on platform availability - it is the only one of the three available on Windows, Android, and iOS today.

Fazm is macOS-only right now. If you are on Windows or Linux, it is not an option yet (Windows is on the roadmap). And while Fazm's browser automation via DOM control is faster and more reliable, it does require installing a browser extension, which adds a setup step that the other two avoid.

Conclusion

The AI agent space in 2026 is not a single-winner-takes-all market. These three tools are optimized for genuinely different use cases, and the right choice depends entirely on your priorities.

If your work lives in a browser and you want a smart browser assistant, Atlas and Comet both deliver. If research and search are your main concerns, Comet has an edge. If you want an AI agent that controls your entire computer, responds to your voice, respects your privacy, and does not cost anything, Fazm is the clear pick.

The trajectory of this space is toward more capable agents that can do more on your behalf. The question is whether you want that agent limited to a browser window or operating across your entire digital life.

You can download Fazm for free at fazm.ai/download, check out the source code on GitHub, or join the waitlist at fazm.ai for early access to upcoming features like phone-to-computer remote control.