Apple Intelligence vs ChatGPT vs Echoo: Which One Actually Fits Your Workflow

The short answer

These three don't compete for the same job. Apple Intelligence Writing Tools is a free, built-in proofread/rewrite/summarize option baked into recent macOS. ChatGPT Desktop is a general-purpose chat app you open in its own window. Echoo is a shortcut-based layer that transforms text in place, inside whatever app you're already using. Most people end up using more than one - the useful question isn't "which wins" but which one fits the specific moment you're in.

What each one actually is

Apple Intelligence Writing Tools is built directly into macOS (Sequoia 15.1 and later, M-series Macs only). Right-click selected text almost anywhere and you get three fixed options - Proofread, Rewrite, Summarize - with zero setup and zero cost. The tradeoff is the fixed set: three actions, Apple's own models, no way to add a command or choose a different model.

ChatGPT Desktop is OpenAI's flagship app, opened with Option+Space. It's genuinely good at what it's built for - long conversations, research, image generation, multi-modal questions. But it's a chat window, not a text-transformation tool: fixing a paragraph means copying it in, describing what you want, waiting, and copying the result back out.

Echoo sits between them - system-wide like Apple Intelligence, but with model choice and depth closer to a full AI app. Select text in any app, press a shortcut, and the result replaces the original in place, using a command you can edit yourself.

Speed: shortcut-in-place vs fixed menu vs chat window

Apple Intelligence and Echoo are both fast for the same reason: right-click or shortcut, done, no window to manage. ChatGPT is slower for text edits specifically, because the workflow is copy, switch app, paste, describe what you want, wait, copy the result, switch back, paste - six or seven steps for something a shortcut does in two. ChatGPT isn't built to be faster here; it's built for a different kind of task.

Ease of use and setup

Apple Intelligence wins on zero setup, but only if you already have the right hardware - M-series Mac, macOS 15.1+. Intel Macs and older Apple Silicon are excluded entirely. Echoo works on any Mac running macOS 13 or later and needs a few minutes of setup (pick commands, set shortcuts). ChatGPT Desktop needs an OpenAI account and, for the more capable models, a Plus subscription.

Customization: this is where Apple Intelligence stops

Apple Intelligence's three actions are fixed - you can't add a command, edit the prompt, or change the model. ChatGPT lets you write custom instructions and build Custom GPTs, but you're still working inside a chat, not a shortcut. Echoo's commands are editable prompts, each with its own shortcut and its own AI provider, plus a marketplace (opens in new tab) of commands the community has already built. If your writing needs vary by context - a strict proofread here, an audience-specific rewrite there - this is the gap that matters most.

Screen context: what the model can actually see

Apple Intelligence works only on the text you've selected. ChatGPT sees only what you paste in - it has no visibility into the app or thread around it unless you copy that in too. Echoo's commands can optionally read what's visible on screen around your selection, so a reply to a Slack thread or an email can account for what's already been said instead of guessing at it.

Privacy: on-device, cloud, or your choice

Apple Intelligence uses a mix of on-device processing and Apple's Private Cloud Compute, per Apple's own documentation. ChatGPT Desktop sends conversations to OpenAI's servers - there's no local mode. Echoo supports both ends: bring your own API key to a cloud provider, or route commands through a local model with Ollama so text never leaves your Mac.

Price

Apple Intelligence: free, but requires an M-series Mac on macOS 15.1+
ChatGPT: free tier available; Plus is $20/month for GPT-4-class models
Echoo: free in BYOK mode (bring your own API key) or with local models; 10 free managed credits with no card required; Pro is $6.99/month for 300 credits

Who should use what

If you have an M-series Mac and only want basic proofread, rewrite, and summarize with zero setup, Apple Intelligence already does that job well - there's little reason to add anything on top of it for that specific case. If you need deep research, brainstorming, or multi-modal work, ChatGPT is the right tool, and no shortcut-based app replaces it. If your day involves rewriting, translating, or replying to text across many apps and you want that to happen in place instead of in a separate window, that's the gap Echoo is built for - and it's the only one of the three that also works on Intel Macs. Plenty of people end up running all three, each for the moment it's actually good at. See the full breakdowns: Echoo vs Apple Intelligence (opens in new tab) and Echoo vs ChatGPT Desktop (opens in new tab).