OIOXO vs Cursor vs Antigravity vs VS Code + Copilot
The other three are excellent editors that send your code to a model in the cloud. OIOXO runs the model on your device and opens in a browser tab. That one difference decides most of the rows below — in both directions. The gaps are listed at the end, plainly.
Competitor facts are from each vendor’s public pages as read on 9 September 2026; the OIOXO column is what version 1.0.8 ships.
| OIOXO | Cursor | Google Antigravity | VS Code + Copilot | |
|---|---|---|---|---|
| Where the model runs | On your device by default: in the browser tab (CPU, or the GPU through WebGPU) or the desktop app’s native engine. Your own API key is a choice, never the default. | In the cloud. Requests go to Cursor’s servers and on to the model provider. | In the cloud. Gemini, Claude and other hosted models through Google. | In the cloud. Copilot sends requests to GitHub’s model endpoints. |
| Cost Prices as published on each vendor’s page on 9 September 2026; they change, so check the links below. | Free: the whole IDE, open models on your device and your own keys without limits, OIOXO models in a free 5-hour window. Pro $3.99/month or $39/year: OIOXO models without limits, the native GPU tier with OIOXO models, priority downloads. | Hobby free (limited agent requests). Individual from $20/month (Pro; Pro+ and Ultra above that). Teams $40 per user/month. Enterprise custom. | Free for individuals with weekly rate limits. More generous limits through Google AI Pro and Google AI Ultra subscriptions (priced on Google’s side, not on the Antigravity page). | VS Code is free. Copilot Free: 2,000 completions and 50 chat requests a month. Pro $10/month, Pro+ $39/month, Max $100/month. Business and Enterprise on request. |
| Privacy — does your code leave the machine? | No, on the device tiers. The model reads your files in your browser or your desktop app; our servers never receive code or prompts. With your own key, your browser calls the provider you chose directly. What our servers do see is listed on the privacy page. | Yes — code and context are sent to the model. Privacy mode promises it is not used for training; it still leaves the machine to be answered. | Yes — code and context are sent to Google’s hosted models. | Yes — code and context are sent to GitHub’s hosted models. |
| Install | None: oioxo.com is the app, in a browser tab. A desktop app (Windows, macOS) adds GPU speed and a terminal; its installer is unsigned today, so the OS shows a warning first. | Desktop app (Windows, macOS, Linux). Sign-in required. | Desktop app (Windows, macOS, Linux). Google account. | Desktop app (Windows, macOS, Linux) plus the Copilot extension and a GitHub account. vscode.dev runs in a browser with a reduced feature set. |
| Reviewing what the agent did | Consent before every write (or a trust preset). The Changes panel lists each pending edit with keep / undo and keep all / undo all, undoes single regions of a file, and reverts a whole agent run through its checkpoint. Inline in the editor: accept or reject hunk by hunk. | Accept / reject per file and per hunk in the diff view; checkpoints restore the workspace to before an agent step. | Agent-produced diffs are reviewed in the editor; the agent’s plan and artifacts are shown alongside. | Accept / discard per file in the chat and edits views; undo through the editor and Git. |
| Language intelligence in a browser tab | TypeScript/JavaScript (real type errors, hover, go-to-definition, symbols), Python (Pyright type inference), CSS, HTML, JSON, Markdown and YAML — in web workers, no install. Fifteen more languages get highlighting only. | Not applicable — a desktop app. Full language servers through VS Code-style extensions. | Not applicable — a desktop app. Full language servers through extensions. | Desktop: everything the extension marketplace offers. vscode.dev: TypeScript, JSON, CSS, HTML and a few web-capable extensions. |
| Offline use | Yes, once a model is downloaded: models, files and checkpoints are on the device. Sign-in, key models, downloads and Git push/pull wait for a network. | Editing works offline; the AI does not. | Editing works offline; the AI does not. | Editing works offline; Copilot does not. |
| Uses your GPU | Yes. A browser with a WebGPU adapter is offered a GPU coder model first, with its size and a consent step before the download. The desktop app runs a native CUDA engine on Windows with NVIDIA; AMD and Intel start on CPU until a Vulkan check passes. | No — inference is remote. | No — inference is remote. | No — inference is remote. |
| Your own API key | Yes, free on every plan: Anthropic, OpenAI, OpenRouter, Groq, Together, Mistral, DeepSeek, xAI, Ollama and LM Studio on your machine, or any OpenAI-compatible endpoint. Keys are encrypted on the device; the row shows the price per million tokens and the header shows today’s spend. | Yes for some providers, with restrictions on which features can use a custom key. | Not offered on the pricing page; models are Google-hosted. | Bring-your-own-key is available for chat with some providers in VS Code. |
| Terminal | Desktop app only. No terminal on the web — a browser cannot run one against your folder; ask the chat to run code, use Preview, or the desktop app. | Yes, integrated. | Yes, integrated. | Yes, integrated. |
| Debugger | No. OIOXO has no step debugger on any tier. | Yes (VS Code’s). | Yes (VS Code’s). | Yes. |
| Extension marketplace | No. The desktop app ships a fixed set of language plugins; there is nothing to install on the web. | Yes (Open VSX). | Yes (Open VSX). | Yes (the VS Code Marketplace). |
| Rust, Go and other compiled languages | Highlighting only in the browser: those language servers need a native toolchain a browser tab cannot run. The desktop app’s bundled plugins do not include them either. | Full language servers through extensions. | Full language servers through extensions. | Full language servers through extensions. |
| Model quality | On-device models are 1.5B to 4B parameters: they build simple pages well and larger apps poorly, and the receipt says which happened. For frontier quality, bring your own key — that is a choice you make, not a default. | Frontier models (Anthropic, OpenAI, Google, xAI and Cursor’s own). | Gemini 3 series plus Claude and gpt-oss on the free tier. | GPT, Claude and Gemini models by plan; premium models on Pro+ and up. |
What OIOXO does not have
If one of these is the thing you need every day, one of the other three is the better tool today. We would rather you find that out here than after an hour.
- No terminal on the web (the desktop app has one).
- No debugger.
- No extension marketplace.
- No Rust, Go, Java, C# or C++ language servers in the browser — highlighting only.
- On-device models are small; frontier quality needs your own key.
- No on-device models in Safari yet — use your own key, or Chrome/Edge.
- The desktop installer is unsigned today; Windows shows SmartScreen and macOS shows Gatekeeper before it runs.
- The native GPU tier is Windows with NVIDIA today; AMD and Intel run on CPU until a Vulkan check passes; macOS uses the browser tiers.
- One folder at a time. No multi-root workspaces.
What only OIOXO has
- The model runs on your device. Your code and prompts never leave the machine unless you choose a key.
- Nothing to install and no account: open oioxo.com, open a folder, ask.
- Free without limits on open models and your own keys; Pro is $3.99 a month, not $20.
- Works offline once a model is downloaded, on a plane or on a locked-down network.
- Your GPU is used, in the browser through WebGPU or natively on the desktop.
- Every agent run is a checkpoint; keep or undo per file, per region, or the whole run — then real Git and publish to GitHub Pages from the browser.
Sources
- Cursor pricing — read 9 September 2026
- Google Antigravity pricing — read 9 September 2026
- GitHub Copilot plans — read 9 September 2026
- OIOXO privacy promise — the short list of what our servers see
Cursor, Antigravity, Visual Studio Code and GitHub Copilot are trademarks of their owners. If a cell about another product is out of date, tell us from Help → Report a problem and it will be corrected.
See for yourself in one tab.
No install, no account. The first ask takes a minute or a few, depending on your machine.