Perplexity Personal Computer vs OpenAI Codex Computer Use vs Claude Computer Use: Which AI Should Run Your Mac?

April 2026 is the month computer-use stopped being a tech demo. Three vendors -- Perplexity, OpenAI, and Anthropic -- now each ship a real product where an AI can move your cursor, type into your apps, click around your browser, and finish work for you. They look superficially similar. They are not interchangeable.

Each one is built around a different theory of where the agent should live and who should be in the loop. Perplexity bets on the always-on Mac. OpenAI bets on the work-thread inside Codex. Anthropic bets on the developer who wants to wire computer-use into their own workflow. This guide lays out who each one is for, where each one wins, and how to pick.

Key Takeaways

• Perplexity Personal Computer is best if you want a 24/7 Mac mini agent and already pay for Perplexity Max ($200/mo).
• OpenAI Codex Computer Use is best if your work is already inside Codex and you want the agent to drive code, browser, and Mac apps without leaving the thread.
• Claude Computer Use is best if you want to wire computer-use into your own scripts via API, or run it inside Claude Code with the strongest sandboxing story.
• All three can read your screen and take actions; none watch you when not running a task.
• Pricing is wildly different: Perplexity is gated to a $200/mo tier; Codex piggybacks on a $20-200 ChatGPT plan; Claude is metered API tokens.
• Two of the three (Perplexity, Codex) are Mac-only on launch. Claude Computer Use is OS-agnostic via API.

What Counts as "Computer Use" in 2026

A computer-use agent is one that takes actions through the same interface a human would: it sees the screen, moves the mouse, clicks buttons, types into fields, and reads what came back. The category started in late 2024 with Anthropic's first computer-use beta. By April 2026 it has split into three meaningfully different shapes:

• A screen agent sits on your machine and operates whatever is on your active display. It works across apps because it works at the same layer the human does.
• A browser-scoped agent works inside a built-in browser pane and captures the DOM directly, which makes it more precise but limited to web pages.
• An API agent is a model endpoint that takes a screenshot in and returns an action out. The developer wires it into whatever loop they want.

Perplexity Personal Computer is the first kind. OpenAI's Codex Computer Use is a hybrid of the first and second kinds. Claude Computer Use is fundamentally the third kind, with packaging on top from Anthropic and from third parties.

Perplexity Personal Computer: The Always-On Mac Agent

Perplexity launched Personal Computer on April 16, 2026. It runs as a Mac app that hooks into local files, native macOS apps (Mail, iMessage, Calendar, Notes, Files), and your browser, and presents a single unified prompt surface activated by pressing both Command keys. Perplexity recommends running it on a dedicated Mac mini so the agent can stay on 24/7 -- the marketing line is "always on, always working".

The product has three structural decisions worth understanding before you buy it.

First, Perplexity owns the orchestration layer. The agent does not just run a single tool call -- it composes work across your apps. Ask it "find the contract Sara sent last week and summarize the payment terms" and it can search Mail, open the PDF in Files, summarize, and reply with the answer in a single turn. That is qualitatively different from an agent that only runs in a browser tab.

Second, everything runs in a sandbox with a kill switch. Per Perplexity's own framing, every action is auditable and reversible, and there is a visible button to halt the agent mid-action. This is the right answer for the threat model -- once an agent can drive your computer, you need a way to slam the brakes.

Third, the price tag is high. Personal Computer is a Perplexity Max-only feature at $200/month, with a waitlist for everyone else. If you do not already have Max, you need to decide whether 24/7 Mac orchestration is worth the upgrade from the $20 Pro plan.

How a reader actually uses Perplexity Personal Computer

A few concrete patterns from week one of the launch:

• Inbox triage. "Read the last 50 emails, list anything that needs a reply today, and draft a one-line response for each." Personal Computer reads Mail, ranks by urgency, and writes drafts you approve.
• Meeting prep. "For my 2pm call with Acme, pull our last three email threads, the most recent contract draft, and any Slack mentions, and give me a one-page brief." The agent stitches across Mail, Files, and Slack into a single document.
• Always-on monitoring. Run on a Mac mini at home, set a recurring task: "Every hour, check my Files folder for new uploads and post a Slack summary if anything came in."

Where it stumbles: anything heavily web-app-driven that is not yet wired into Perplexity's connectors. If your work lives in a Notion-Linear-Figma triangle and Personal Computer does not have native connectors for them yet, the agent has to drive your browser and the friction shows.

OpenAI Codex Computer Use: The Agent Inside Your Coding Thread

OpenAI shipped Codex for (almost) everything on April 16, 2026 -- the same day as Perplexity Personal Computer, by coincidence. The headline feature is Codex now controls your Mac apps directly, but the substantive change is that Codex is no longer just a coding agent. It is a general-purpose work agent that happens to be best at coding.

Three pieces of the launch matter for computer-use specifically:

• Mac app control. Codex can now drive your Mac with cursor moves, clicks, and typing -- the same primitive Perplexity uses. The framing is different though: Codex Mac control is presented as a tool the agent reaches for inside a coding session, not as the main UI.
• In-app browser with comment mode. A built-in browser pane inside Codex captures both screenshots and DOM elements. You can point and click on a rendered page to feed precise context (the element, its DOM path, the screenshot) into the next agent turn. This is qualitatively better than asking an agent to "look at the button on the right side" -- you literally point.
• Thread automations. Codex sessions can now run continuously, checking Slack, email, and PRs in the background and surfacing what you actually need to look at. The thread is the unit of always-on, not a separate "agent" surface.

If you read those three together, OpenAI's bet becomes clear: they think computer-use belongs inside the same workspace where you are already telling the agent what to do. There is no second app to open. The thread you are already in just got the ability to drive your machine.

How a reader actually uses Codex Computer Use

• End-to-end UI bug fixes. "There is a layout bug on the pricing page when the viewport is below 768px." Codex opens the page in its in-app browser, you point at the broken element, Codex captures the DOM and screenshot, navigates to the React component, fixes the CSS, runs the build, verifies the fix in the same browser pane, and commits.
• Cross-app workflows during a coding session. Halfway through implementing a feature you realize you need to pull a number out of a Linear ticket and a value from a Notion doc. Without leaving the Codex thread, the agent opens both in the in-app browser, extracts the numbers, and continues.
• Always-on work threads. Set a long-running Codex thread to "watch the deploy queue, and if a deploy fails, open the logs, summarize the error, and post in #incidents". The thread polls in the background and surfaces only when something actually broke.

Where it stumbles: outside of work that touches code or web pages. Codex Mac app control is real, but the framing of the product is software-development-first. If your daily work is more Pages-and-Numbers than Cursor-and-Slack, Perplexity is the cleaner fit.

Claude Computer Use: The API That Started It All

Anthropic shipped the first public computer-use API in October 2024 as a beta on the Claude API. It is now a stable feature on Sonnet and Opus models, and as of Opus 4.7 (released April 16, 2026), the underlying vision model accepts images up to 2,576 pixels on the long edge -- which matters because computer-use is fundamentally a vision problem and higher resolution lets the model see smaller UI elements.

The product shape is meaningfully different from the other two:

• Claude Computer Use is an API endpoint, not a desktop app. You call it. You give it a screenshot. You get back an action description (move mouse to (x, y), click, type "..."). You execute the action. You loop. Anthropic does not ship a Mac wrapper because the customer is the developer building the wrapper.
• It runs inside Claude Code too. When you give Claude Code permission to use the computer, the same API powers it -- but inside the existing Claude Code session, with Claude Code's permission model.
• Sandboxing is your responsibility. Anthropic publishes strong recommendations -- run the agent inside a virtual machine, give it limited file system access, monitor every action -- but the API itself does not enforce a sandbox. The customer does.

The trade-off is total flexibility against zero handholding. If you want an agent that can drive a Linux VM running headless Chrome, classify accessibility issues, and post a report -- Claude Computer Use is the only one of the three that lets you build that without owning a Mac.

How a reader actually uses Claude Computer Use

• CI-driven UI testing. Wire Claude Computer Use into a CI pipeline that spins up a Docker container per PR, takes screenshots of every changed page, and posts a checklist of accessibility and visual-regression issues back to the PR.
• Customer-support agent that drives an internal tool. Most CRMs and admin panels are not API-first. A Claude Computer Use agent in a sandboxed VM can drive the internal tool the same way a human support rep would, and you keep the audit trail in your own logs.
• Inside Claude Code, opt-in. Add a claude --allow computer-use flag for sessions where you want Claude Code to be able to drive a browser as part of a longer task. The same model runs but with Claude Code's permission system gating each action.

Where it stumbles: as a turnkey product for individual end users. Without significant scaffolding, Claude Computer Use is not something you "install and use". That is by design -- Anthropic ships the model and lets the ecosystem (Claude Code, Warp, Cursor, third-party tools) ship the surfaces.

Side-by-Side: Where Each One Wins

| | Perplexity Personal Computer | OpenAI Codex Computer Use | Claude Computer Use | |---|---|---|---| | Surface | Native Mac app, Cmd+Cmd activation | Codex thread + in-app browser | API endpoint (or via Claude Code) | | Scope | Whole macOS: apps, files, browser | Whole macOS + DOM-precise browser | Whatever you wire it to | | Always-on | Yes (recommend Mac mini) | Yes (thread automations) | Only what you build | | DOM access | No (vision-based) | Yes (in-app browser comment mode) | No (vision-based by default) | | Pricing model | $200/mo Max plan | Bundled with ChatGPT plan | Per-token API | | Lowest entry point | $200/mo | $20/mo (ChatGPT Plus) | Pay-as-you-go | | Native apps integrated | Mail, iMessage, Calendar, Notes, Files | Most via Mac control | Up to you | | Sandboxing | Built-in sandbox + kill switch | Permission prompts inline | Developer-defined | | OS support | macOS only | macOS only (initial launch) | OS-agnostic via API | | Best at | Cross-app personal workflows | Coding sessions that touch web/UI | Programmable computer-use | | Worst at | Heavy code work | Non-code office tasks | Anything turnkey | | Released | April 16, 2026 | April 16, 2026 (Mac control phase) | Oct 2024 (beta), GA 2025 |

Choose Perplexity Personal Computer If...

• You want a single Mac-native agent that handles your inbox, calendar, files, and routine cross-app errands.
• You already pay for Perplexity Max, or the $200/mo price is justified by the time savings.
• Your work is operator-shaped (research, ops, executive, founder) rather than developer-shaped.
• You have a spare Mac (a Mac mini, a retired laptop) you can dedicate to running the agent 24/7.
• You value a clean kill switch and explicit sandboxing.

The "spare Mac as agent host" pattern is the killer scenario. A $599 Mac mini sitting on a shelf, plugged into the wall, running Personal Computer 24/7 as a background co-worker, is genuinely a new shape of computing.

Choose OpenAI Codex Computer Use If...

• You spend most of your day inside a Codex thread already.
• Your computer-use needs are tightly bound to coding work: bug repro in a browser, UI testing, cross-tool research during a feature implementation.
• You want point-and-click DOM-precise context capture inside a browser pane.
• You want background thread automations that watch Slack/email/PRs without spinning up a separate agent product.
• You are price-sensitive and already pay for ChatGPT Plus or Pro.

Codex's edge is integration. The agent that drives your Mac is the same agent that just wrote your code, and the context is shared. That is genuinely valuable for developer workflows in a way Perplexity is not even attempting.

Choose Claude Computer Use If...

• You are building a product or internal tool that needs computer-use as a primitive.
• You need OS coverage beyond macOS (Linux servers, Windows VMs).
• You want to run computer-use inside Claude Code sessions for agentic workflows that wrap browser automation.
• You want maximum control over the sandbox and audit trail.
• You are running computer-use at scale where per-token pricing beats subscription fees.

Claude Computer Use is the right answer when the question is "I want to wire this into my system" rather than "I want a desktop app". For the Claude Code crowd specifically, the integration is excellent: the same permission model, the same session model, the same context.

Real Workflow Examples Across All Three

Three realistic workflows, mapped to the right tool for each:

1. "Draft a Monday morning briefing." Read the weekend's email, summarize the calendar for the week, list anything that needs a decision before Wednesday. Best tool: Perplexity Personal Computer. Mac-native, cross-app, runs while you sleep on a Mac mini.

2. "Fix this layout bug on the pricing page and verify the fix." Open the page, identify the broken element, find the React component, edit it, run the build, screenshot the fixed version. Best tool: Codex Computer Use. The in-app browser comment mode plus Codex's existing code-editing capabilities make this a single thread.

3. "Run an accessibility audit on every PR before it merges." A CI job spins up a container, runs the changed pages through a vision model, classifies issues, posts a checklist back to the PR. Best tool: Claude Computer Use. API access, runs in a Docker container, integrates with your existing CI.

The general pattern: Perplexity for personal cross-app work, Codex for coding work that touches the screen, Claude for programmable computer-use. None of the three is wrong. They are aimed at different problems.

Privacy and Security: The Real Differences

All three vendors talk about privacy. The actual mechanisms are different.

Perplexity Personal Computer runs the agent in a sandbox on your local Mac, with a manual kill switch, reversible action history, and the agent never operating without an explicit Cmd+Cmd activation. The data flow is: your screen and selected local files are sent to Perplexity's servers as needed for the current task; results come back. You opt into each connector (Mail, iMessage, Files, Notes, Calendar) per app, and you can revoke any of them.

OpenAI Codex Computer Use operates inside the existing Codex permission model. Each new app or new browser action prompts you the first time; you can grant blanket permission per app or per workflow. Screenshots and DOM captures travel to OpenAI's servers as part of the active thread.

Claude Computer Use sandboxing is your problem. Anthropic recommends a VM and limited filesystem access, and ships sample harnesses, but enforcement is the responsibility of whoever called the API. Inside Claude Code specifically, the existing Claude Code permission model gates each tool call.

For sensitive workflows -- access to financial accounts, customer PII, code that contains secrets -- treat all three as if they were a contractor with full screen access. Scope permissions narrowly, audit the action history, and never give a computer-use agent unmonitored access to anything destructive.

Pricing: What You Actually Pay

| Plan | Monthly cost | Computer-use included? | |---|---|---| | Perplexity Pro | $20 | No -- Pro plan does not include Personal Computer | | Perplexity Max | $200 | Yes -- this is the floor for Personal Computer | | ChatGPT Plus | $20 | Yes -- includes Codex with Mac control and thread automations | | ChatGPT Pro | $200 | Yes -- includes Codex at higher rate limits | | ChatGPT Business | $25/user | Yes -- Codex with admin controls | | Claude API (computer-use) | Per-token | $5/M input, $25/M output (Opus 4.7) | | Claude Code Max plan | $100 (or $200) | Yes -- computer-use included via Claude Code permissions |

A real comparison for a single user who wants computer-use:

• Cheapest path: ChatGPT Plus at $20/mo, get Codex Computer Use as a bundled feature.
• Most-flexible path: Claude API with metered usage, ~$5-30/mo for typical individual workloads.
• Most-powerful path: Perplexity Max at $200/mo, get a desktop-grade agent built for cross-app orchestration.

The $200/mo Perplexity Max price is intentional. It is positioned as a real alternative to hiring a part-time assistant, not as a productivity feature you grab in addition to ChatGPT.

What This Means for the Next Six Months

Three things stand out from how April 2026 played out:

• Computer-use is no longer a separate product category. It is a feature inside the agent product you already use. Perplexity, OpenAI, and Anthropic all integrated it into their existing surfaces rather than spinning up a standalone "computer-use app".
• The Mac is the default agent host. All three launched on macOS first. Linux and Windows support exists for Claude via API, but consumer-grade agents are Mac-first because macOS's accessibility APIs are the most permissive on a popular consumer OS.
• Sandboxing is the differentiator nobody is winning yet. Perplexity's kill switch is the most polished; Anthropic's recommendations are the most rigorous; OpenAI's permission prompts are the most ergonomic. None of the three has solved "give the agent access to do exactly the thing I asked for and nothing else", and that is the next year of work for all three vendors.

The question is no longer whether AI can drive your computer. It is which AI gets to. For most readers in April 2026, the right answer is one of these three -- and if you do not pick consciously, the one that already has your subscription dollars will pick for you. Choose deliberately.