AI INTERVIEW COPILOT
AI Interview Tools for Coding, System Design & Behavioral Rounds
An AI interview tool helps you answer questions during a live technical interview — screenshot a coding problem and get a streaming solution, hear your interviewer's voice and get a STAR-format answer, walk into a system-design round with rendered Mermaid diagrams ready to go. Interview Helpers is a stealth Windows overlay that does all three, invisible to Zoom, Google Meet, and Microsoft Teams screen share.
AI for every interview type
CODING
AI for coding interviews
Hotkey screenshot → commented C++/Python/Java solution with complexity in ~2 seconds. Multi-screenshot batching for long problems.
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DESIGN
AI for system-design interviews
Mermaid flowchart + sequence diagram + ER model + capacity math, rendered inline as SVG.
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BEHAVIORAL
AI for behavioral interviews
Live Deepgram transcription of the interviewer, STAR-format answer drafted the moment they finish.
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How AI interview tools compare
AI interview FAQ
What is an AI interview tool?
An AI interview tool uses large language models to help candidates answer questions during a technical interview — from screenshotting a coding problem and receiving a solution, to transcribing what the interviewer says and drafting a structured answer. The best AI interview tools run as stealth overlays so they stay invisible to Zoom, Google Meet, or Microsoft Teams screen share.
Can AI actually help in a coding interview?
Yes — the same way Stack Overflow does at work. An AI copilot lets you sanity-check your algorithm, verify complexity, enumerate edge cases, and pattern-match a problem to a known category. It does not replace thinking; it removes the friction of Alt-tabbing to a browser tab. Interview Helpers is built specifically for this workflow.
Is using AI in a live interview cheating?
The industry consensus is that using AI to sanity-check your approach is the same as using Stack Overflow at work — legitimate. Using AI to generate an entire answer verbatim while pretending you wrote it fails the follow-up questions immediately. The line is between using it as a reference vs a crutch.
Which AI models are best for coding interviews?
GPT-5.6 Terra for warm-up Easy problems (1-2 second first token), Claude Sonnet 5 for standard Mediums, Claude Opus 5 or GPT-5.6 Sol for the hardest problems and system-design questions. Interview Helpers switches between all four in one click.
How do I hide an AI helper from screen share?
On Windows 10 build 2004+, apps can call SetWindowDisplayAffinity with the WDA_EXCLUDEFROMCAPTURE flag to become invisible to any capture pipeline — including Zoom, Google Meet, Microsoft Teams, and Snipping Tool. Interview Helpers sets this flag on its overlay window at startup.
Can AI transcribe the interviewer for behavioral rounds?
Yes. Interview Helpers streams system audio through Deepgram Nova-3 for ~200ms interim transcription, then feeds the final transcript to the AI which drafts a STAR-format answer. Useful for behavioral, system-design walkthroughs, and any spoken round.
What is the best AI for system design interviews?
For system design specifically, Claude Opus 5 is best in class — it consistently returns all four required artifacts (flowchart, sequence diagram, ER model, capacity math) on the first pass. Interview Helpers renders Mermaid diagrams inline as SVG so you can screenshot them directly to a whiteboard.
How much does an AI interview copilot cost?
Interview Helpers is $39/month or $375/year. The trial is 10 free messages plus 5 minutes of speaker mode, no credit card. Premium models (GPT-5.6 Sol, Claude Opus 5) unlock on Pro or with your own OpenAI/Anthropic API key.
Try the AI interview copilot free
10 free messages + 5 minutes of live interviewer transcription. No credit card. Windows 10 or later, 64-bit.