Undetectable Interview AI: What “Undetectable” Really Means (2026)
What makes an interview AI genuinely undetectable in 2026 — OS-level screen-share exclusion, no browser extension, nothing into your microphone — and the three tests that prove it before a live interview. An honest guide.
Devon Park
Head of Research, Acedly
What "undetectable interview AI" actually means
Most tools that call themselves undetectable are describing a hope, not an architecture. The word only means something if you can name the mechanism behind it. A genuinely undetectable interview AI gets three things right at the same time:
- OS-level screen-share capture exclusion. When the interviewer asks you to share your screen, the tool's window must be removed from the captured pixel buffer by the operating system itself —
NSWindowSharingNoneon macOS,WDA_EXCLUDEFROMCAPTUREon Windows. This is the property that survives a full-desktop share, not just a single-window share. - No browser extension. An extension lives inside the browser the interviewer can ask you to share, and it shows up in the extensions bar. The competitors candidates most often report being caught with are the ones whose stealth depends on a browser extension. A native desktop app has no such surface.
- Nothing into your microphone. The copilot must never speak or play audio into the call. If it did, the meeting's own transcription (Zoom AI Companion, Teams Copilot, Gemini in Meet) would capture it. A real copilot only renders text on your screen; the only thing in the transcript is what you say out loud.
Where tools claim "undetectable" but aren't
The gap between claim and reality is usually one of these:
| Feature | Genuinely undetectable | Claims it, often isn't |
|---|---|---|
| Screen-share behaviour | OS-level capture exclusion; survives full-desktop share | Relies on you sharing only one window; a full-screen share exposes it |
| Install surface | Native desktop app, nothing in the browser | Browser extension visible in the extensions bar and shareable tab |
| Audio | Text on your screen only; never enters the mic | Reads answers aloud or pipes TTS that the meeting transcribes |
| Proof | Per-platform verification you can re-run yourself | Adjectives in marketing copy; no way to verify |
Acedly is built around all four right-hand-column failures: it is native-only (no extension), excluded from capture at the OS level across eight verified platforms (Zoom, Microsoft Teams, Google Meet, Webex, Lark/Feishu, Amazon Chime, Coderpad, HackerRank), renders text only, and publishes per-platform verification status you can re-run on your own machine.
The three tests that prove it before a real interview
Don't take any tool's word for it. Twenty minutes with a friend settles it:
- The full-screen-share test. Start a test meeting, share your entire screen (not one window), and have your friend screenshot what they see. The tool should be missing bit-exact.
- The extension test. Open your browser's extensions list. If the "stealth" depends on something there, an interviewer who asks you to share that browser can see it. A native app passes by having nothing to find.
- The transcript test. Record the test meeting, let the platform's AI transcribe it, and read the transcript. The copilot's output should appear nowhere — only your spoken words.