How to check whether text was written by AI
A short, practical walkthrough — no account needed to try it.
Step by step
- Select the passageLonger is better — under about 200 characters, no detector is trustworthy.
- Press Option+DYou get a percentage, a confidence level, and the signals.
- Read the signals, not just the numberUniform sentence length, hedging, cliché connectors and absent typos are what drive the estimate.
- Treat it as evidence, not proofDetection is probabilistic. aiCat says so rather than pretending otherwise.
Try it on the text in front of you
Free to start, 10 aiCatCoins included, no card. Mac, Windows and Linux.
The default hotkeys (all editable)
| Keys | What happens |
|---|---|
| Option / Alt | aiCat guesses: rewrite if you are writing, translate if you are reading something foreign, proof-check otherwise |
| Option + R | Refine / rewrite |
| Option + T | Translate |
| Option + P | Proof check |
| Option + D | Detect AI |
| Option + E | Explain |
| Option + C | Start a chat with the selection attached |
| Option + S | Chat with web search |
| Option + L | Read aloud — or record you, if nothing is selected |
| Option + W | Dictate: speak, and the text appears at your cursor |
| Option + I / V | Generate an image / a video |
| Option + H | History of everything you selected and what came back |
Why this is faster than the alternative
The usual route is: copy, switch app, paste, prompt, wait, copy, switch back, paste. Eight actions and a broken train of thought.
Selecting and pressing one key is two actions, and you never leave what you were doing. Over a working day that difference compounds into real time.
aiCat pricing at a glance
| Plan | Price | aiCatCoins / month | Max selection | What it unlocks |
|---|---|---|---|---|
| Free | $0 | 10 | 500 chars | All text tasks + free voice-to-text |
| Premium | $6/mo (was $10) | 3 000 | 5 000 chars | Voice, image, video, premium models |
| Team + Offline | $18/member | 12 000 | 50 000 chars | Local models, no-internet mode, team sync |
| Enterprise | $90/member | 150 000 | Unlimited | SSO, audit, best coin rate |
Frequently asked
Can AI detection be wrong?
Yes, in both directions. Non-native writers are disproportionately flagged as AI by many detectors, which is exactly why aiCat shows the reasoning instead of a bare verdict.
What is aiCat?
aiCat is a desktop app for macOS, Windows and Linux. You select text anywhere on your computer, press one hotkey, and an AI does what you need with it — rewrite, translate, proof-check, detect AI, explain, read aloud, dictate, or start a chat.
How much does aiCat cost?
Free to start, with 10 aiCatCoins a month and every text task included. Premium is $6 a month (40% off the $10 list price) and adds voice, image and video generation, 5000-character selections and 3000 coins a month. Team + Offline is $18 per member and adds local models that work without internet.
Which operating systems does aiCat support?
macOS (Apple Silicon and Intel), Windows 10/11, and Linux as AppImage, .deb or .rpm.