Master Coding Interviews
with AI Guidance

Experience the closest thing to a real technical interview — structured sessions that mirror actual interview conditions, with an AI interviewer that guides you through requirements, evaluates your solution, and delivers detailed feedback to get you offer-ready.

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150+
Coding Problems
20
Minutes per Session
100%
Free to Use

Powerful Features

🎯

Structured Interview

20-minute timed sessions that follow the exact same format as real interviews. Interact with AI to clarify requirements and discuss your ideas, just like you would with a real interviewer.

⚡

Instant Evaluation

Get real-time test results with detailed pass/fail analysis and error messages.

💡

AI-Powered Feedback

Receive personalized insights on code quality, style, and optimization opportunities — including detailed strengths, improvement areas, and action items.

🏢

Customized Interview Experience

Practice interviews tailored to the style and expectations of today's hottest companies — including OpenAI, Anthropic, and Databricks. Target the exact role and company you're preparing for.

💻

IDE Support

Code in a fully featured browser-based IDE with syntax highlighting and auto-indentation. Validate your solution by running it against real test cases instantly — no local setup required.

📊

Complexity Analysis

Understand time and space complexity of your solution with detailed breakdowns.

How It Works

1

Select a Problem

Choose from a curated collection of LeetCode-style problems covering arrays, trees, graphs, and more.

2

Code & Debug

Write your solution in Python with auto-indentation and syntax support.

3

Get Instant Feedback

Submit your code and get instant evaluation with test case results and detailed error analysis.

4

Learn & Improve

Review the detailed feedback including complexity analysis and optimization suggestions.

AI4Interview demo — full interview session

What Our Users Say

"The mock interview really pushed me to think on my feet. It asked great questions that pinpointed a key weak point in my prep I hadn't noticed before. I came in thinking I was ready, but left with a clear, specific action plan on exactly what to improve. The structured format and real-time feedback made it feel just like the actual interview. Highly recommend doing this before your big day. Thanks!"
Louis X.
Offer from Meta
"The session gave me clear, detailed, and actionable feedback with practical suggestions that really helped me identify specific areas for improvement. It knew exactly where I was struggling and offered concrete ways to close those gaps. The session was insightful, well-paced, and felt like a genuine mock interview from start to finish. I walked away knowing precisely what to polish — couldn't have asked for better preparation."
Zeeshan P.
Offer from OpenAI
"This session accurately determined the level I'd pass the round at and knew exactly how to strengthen my stories to get there. I especially loved the emphasis on increasing complexity — it pushed me to go deeper than I would have on my own. The feedback was specific, actionable, and easy to put into practice immediately. I'm so glad I did this mock before the real Amazon interview. 5 stars easily."
Amanda C.
Offer from Amazon

Simple, Transparent Pricing

Free

Starter

$ 0 /month

Get started at no cost

  • ✓ Up to 2 hours of practice
  • ✓ Up to 6 problems
  • ✓ AI interviewer & real-time chat
  • ✓ Instant test evaluation
  • ✓ Detailed AI feedback
Start Free
Most Popular

Pro

$ 50 /month

Serious interview prep

  • ✓ Up to 20 hours of practice
  • ✓ Up to 60 problems solved
  • ✓ Everything in Starter
  • ✓ Complexity analysis
  • ✓ Progress tracking
  • ✓ Priority support
Elite

Elite

$ 100 /month

Target top companies

  • ✓ Everything in Pro
  • ✓ Company-tailored problems
  • ✓ OpenAI, Anthropic, Databricks styles
  • ✓ Novel & unreleased questions
  • ✓ Role-specific question sets
  • ✓ Dedicated support
1-on-1

Expert Session

$ 120 one-time

Real person, real pressure

  • ✓ Live 1-on-1 with a senior engineer
  • ✓ Coding interview
  • ✓ Behavioral interview
  • ✓ System design
  • ✓ Data engineering & ML design
  • ✓ AI-enabled coding interview

No hidden fees. Cancel anytime. Questions? Contact us.

Frequently Asked Questions

How long does each interview session last?

Each session is 20 minutes long, designed to simulate real technical interview conditions. You can start a new session whenever you're ready.

What programming languages are supported?

We support Python. Write and run your solution in Python directly in the browser.

Do I need to create an account?

Yes, we require a free account to get started. Sign up with your email or Google account — it takes less than a minute. All accounts include full access to our free tier features.

How is my code evaluated?

Your code is executed against a comprehensive set of test cases. You'll receive instant feedback on correctness, runtime, and any errors encountered.

Can I retry problems?

Yes! You can practice the same problem as many times as you want. Try different approaches and learn from each attempt.

Is my code data saved?

Your code is evaluated during the session but not permanently stored. Each new session starts fresh, giving you a clean slate.

How do I get help or report an issue?

Email us at support@ai4interview.com and we'll get back to you within 24 hours.

Ready to Ace Your Interviews?

Join thousands of developers practicing with AI-powered guidance and real-time feedback.

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