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Acexcode

A sub-second interview copilot that runs invisibly during the call.

A stealth real-time copilot that helps candidates walk into technical interviews armed with sub-second AI answers.

WhisperGemini 2.0 Flash VisionElectronTypeScriptWindows API
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<300ms
audio capture latency
<1s
AI first-token latency
<50ms
overlay toggle
OS-level
screen-share invisibility
The brief

Build an interview copilot that lives on the candidate’s machine, listens to the call audio, reads the shared screen, and replies with structured answers in under a second — while staying invisible to the interviewer’s screen share.

What we shipped
  • Dual-stream audio pipeline — microphone + system audio with under 300ms capture-to-transcription latency, powered by Whisper running locally for the fast path and a hosted instance for accuracy.
  • Vision + reasoning loop — screenshots of the shared screen are passed through Gemini 2.0 Flash Vision and re-grounded against the candidate’s resume + the job description.
  • OS-level stealth overlay — a click-through transparent surface that doesn’t appear in screen captures on Windows 10+. Toggling visibility takes under 50ms via a global hotkey.
  • Multi-language code panel — syntax highlighting for JavaScript, TypeScript, Python, Java, Go, Rust, C++, and C#. One keystroke copies the suggested solution.
  • STAR-format behavioural mode — the model is steered into Situation / Task / Action / Result structure whenever it detects a behavioural prompt.
How it feels

Candidates press Ctrl + Shift + Space to start a session. The overlay listens silently, detects the question type (technical, behavioural, coding), and renders an answer the candidate can read off the screen — or paraphrase. Ctrl + B hides everything in the time it takes to glance at the interviewer’s webcam.

Outcome

Trusted by candidates interviewing at every name on the FAANG roster — Google, Amazon, Meta, Microsoft, Apple, Netflix — plus high-bar coding platforms like HackerRank, CoderPad, and Codility. Live on Windows; macOS in private beta.

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