AI coding interview assistant
Rehearse coding rounds out loud first: Co-Help's AI mock interviewer asks self-contained coding problems for your role and level, then scores how you explain your approach, complexity and edge cases. In coding interviews where AI assistance is allowed, Co-Help works as a live AI coding interview assistant on a private overlay, transcribing the interviewer's question and explaining code or problems you screenshot.
Rules vary by employer and assessment platform. Some companies and technical-screen platforms explicitly restrict outside tools. Check the rules for your specific interview before using any AI assistant, including Co-Help.
How Co-Help helps with coding interviews
During a live coding interview, Co-Help listens to the interviewer's question through live transcription and can analyze what's on your screen — your code, a prompt, or test output — using screenshot Q&A on Pro Max. Take a screenshot of the problem or your current code, and Co-Help sends it to a stronger model (Anthropic Claude, with OpenAI GPT as automatic fallback) to explain it, suggest a next step, or spot a bug, on your private overlay.
The overlay asks your operating system to exclude it from screen capture, so in typical screen shares it does not appear even when your code editor is the shared window. This depends on your OS, settings, meeting, recording or proctoring software and hardware, and is not guaranteed.
Built for the format
- Screenshot Q&A on your code editor (Pro Max) — capture a function, error message, or prompt and get an explanation or suggestion instantly.
- Live transcription of the interviewer's question — so you don't have to hold every detail of a multi-part prompt in your head.
- Consent: Some places require every participant's consent before a call is transcribed. You're responsible for getting it.
- Screen-capture protection — the overlay asks your OS to exclude it from capture when your IDE or terminal is shared (not guaranteed).
- Your knowledge base — feed in past projects or notes so explanations connect to your real experience.
- Review before you rely on it: AI answers can be wrong or incomplete. Review every suggestion before you rely on it.
Pricing for every interview type
The same three plans cover every interview type — there's no separate add-on for coding, system design, or behavioral support:
- Free 15-minute trial — Pro Max features, no card needed. The clock starts at your first question.
- Pro — $10 per session, 5 for $39, $79 for 30 days or $349 a year: fast models, sessions up to 90 minutes, no screenshots or diagrams.
- Pro Max — $20 per session, 5 for $75, $150 for 30 days or $600 a year: the most advanced models, screenshots and diagrams, sessions up to 2 hours.
Every plan includes humanized answers from Anthropic Claude with OpenAI GPT as automatic fallback, live transcription, answers from your documents and knowledge base, GitHub-connected answers, 20+ languages, the phone companion and the private overlay with screen-capture protection — with no API keys to manage. Screenshot Q&A and diagram rendering are Pro Max features.
Works on the platform you're interviewing on
Co-Help runs as a desktop overlay, independent of whichever video call tool your interview uses. It uses the same OS-level screen-capture protection with Zoom, Microsoft Teams, and Google Meet alike, on both Windows and Mac.
Practice first, then live help where it's allowed
- Practice mode. Run a coding, behavioral or system design mock interview for the role and seniority you choose. Answer by typing, or out loud with a voice interviewer that reads each question and can ask a follow-up (voice practice is tailored to a job description you paste in). Coding answers are scored on correctness, complexity analysis, edge cases and testing, code clarity and how you communicate your approach. Practice has no code editor or test runner; it's for rehearsing how you explain a solution. Each answer gets a 1–10 score, written feedback and a model answer, and you can download each report as a Markdown file. Practice is included with paid plans (unlimited on 30-day and yearly plans) and doesn't use up a live session. See AI mock interview practice.
- Live help, where it's allowed. In coding interviews that permit AI assistance, Co-Help transcribes the interviewer's question and explains code, prompts or errors you screenshot on a private overlay.
- Check the rules. Many employers, schools and testing platforms don't allow AI help. You're responsible for following them. Read the acceptable-use terms and Is it OK to use AI in an interview?
GitHub-connected answers. Connect GitHub with a personal access token and Co-Help indexes your repositories, so when an interviewer asks about your own projects, technical answers are grounded in your actual code instead of a generic guess. After each call, your session report and history let you review the questions and answers.
Want the full picture of live help plus practice? See the AI interview copilot overview.
Other interview scenarios Co-Help covers
Zoom interview assistant
Private overlay for Zoom calls, with screen-capture protection in typical Zoom, Teams & Meet shares.
Microsoft Teams interview assistant
Live help on Teams calls and interviews.
Google Meet interview assistant
Works alongside Meet in the browser or app.
System design interview assistant
Diagram rendering and architecture answers.
Mac interview assistant
macOS 12+, Apple Silicon and Intel.
Frequently asked questions
Does Co-Help work for coding and system design interviews?
Yes. On Pro Max, Co-Help includes screenshot Q&A for reading code or diagrams and can render architecture and flow diagrams, alongside live transcription — useful for coding, system design, and behavioral interviews.
Does the overlay appear when I share my code editor?
Usually not, but it isn't guaranteed. Co-Help asks your operating system to exclude the overlay from screen capture, so in typical Zoom, Teams and Google Meet screen shares it does not appear. This depends on your OS version and settings, the meeting, recording or proctoring software, and your hardware, so it is not guaranteed — never assume it is invisible. You must follow the rules of every interview you use Co-Help in; see our Terms.
Does Co-Help support a specific programming language?
No, it isn't limited to a fixed list. Co-Help's screenshot Q&A uses the same AI as the rest of the app (Anthropic Claude, with OpenAI GPT as automatic fallback), which reads and reasons about whatever code or text appears in the screenshot.
Walk into your next coding interview prepared
Try Co-Help free for 15 minutes, then pay from $10 per session. Or ask us a question first.