AI Coding Interview Assistant
Screenshot the problem. Ghost gives you the approach, clean code, time and space complexity and edge cases in seconds, so you can talk through your solution with confidence.
20 free credits · macOS & Windows · No subscription
What is an AI coding interview assistant?
An AI coding interview assistant is an app that helps you during a coding round. You show it the problem, and it suggests the approach, working code, the complexity and the edge cases worth mentioning.
Ghost does this from a single screenshot. It sits in a small floating window on your desktop, works with any editor or browser tab, and can also listen to the interviewer's follow-up questions.
Problem: Two Sum. Return indices of the two numbers that add up to the target.
Approach: one pass with a hash map. For each number, check if its complement is already stored.
def two_sum(nums, target):
seen = {}
for i, n in enumerate(nums):
if target - n in seen:
return [seen[target - n], i]
seen[n] = i
return []Complexity: O(n) time, O(n) space.
Edge cases: duplicates, negative numbers, no valid pair.
How Ghost works in a coding round
- 01
Open Ghost before the round
Sign in, pick your language, and join the call as normal. Ghost floats on top, hidden from screen share.
- 02
Screenshot the problem
When the question appears, take a screenshot. Ghost reads it straight off your screen.
- 03
Explain and code
Get the approach, code, complexity and edge cases in seconds, then walk the interviewer through it in your own words.
Built for technical interviews
Everything you need to solve the problem and explain it well.
Reads the problem from your screen
Take a screenshot of the question in any editor, browser tab or shared doc. No copying and pasting.
Approach before code
A short explanation of the idea first, so you can talk through your thinking before you start typing.
Clean code in your language
Python, Java, C++, JavaScript, Go and more. Readable code with clear variable names, not code-golf.
Complexity and edge cases
Time and space complexity plus the edge cases interviewers love to ask about: empty input, duplicates, overflow.
Hears the follow-ups
"Can you do it in O(1) space?" "What if the input is sorted?" Ghost listens and suggests how to adapt.
Hidden from screen share
Ghost's window is excluded from screen capture, so it doesn't appear in Zoom, Google Meet, Teams or recordings.
Works for every kind of technical round
Data structures and algorithms (DSA)
Arrays, strings, hash maps, two pointers, sliding window, trees, graphs, dynamic programming. The classic LeetCode-style round.
Live coding in a shared editor
Ghost floats over any app, so it works alongside browser-based coding pads, your own IDE, or a screen-shared doc.
Debugging and code review
Screenshot a buggy function and get the likely cause, the fix, and how to explain it.
System design
Screenshot a diagram or the prompt and get the key components, trade-offs and scaling points to cover.
Practice and mock interviews
Work through problems with a friend and see how a strong answer is structured before the real round.
Interviewing for a non-technical round too? See the AI interview assistant for behavioural and HR questions.
See Ghost in action
Pay per question, not per month
A screenshot costs 2 credits and a text question 1 credit. A typical coding round with a few problems and follow-ups uses about 30 to 50 credits.
You start with 20 free credits, and packs start at $10 for 200 credits, with no subscription. See how that compares in our AI interview copilot price comparison.
Frequently asked questions
What is an AI coding interview assistant?
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An AI coding interview assistant is an app that helps you during a coding interview. You show it the problem, and it suggests an approach, working code, the time and space complexity, and edge cases to mention, so you can explain your solution clearly.
How does Ghost help in a coding interview?
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Take a screenshot of the coding problem and Ghost returns the approach, clean code in your chosen language, the time and space complexity, and edge cases, usually within a few seconds. It can also listen to follow-up questions and suggest how to adapt your solution.
Which programming languages does Ghost support?
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Ghost can answer in any mainstream language, including Python, Java, C++, JavaScript, TypeScript, Go, C# and Kotlin. Just tell it which one you're using.
Does Ghost work with browser-based coding editors?
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Yes. Ghost is a desktop app that floats on top of any window, so it works alongside coding pads in your browser, your own IDE, or a shared document during a video call.
Will the interviewer see Ghost when I share my screen?
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No. Ghost's window is excluded from screen capture on macOS and Windows, so it doesn't appear when you share your screen in Zoom, Google Meet or Microsoft Teams, or in screen recordings.
Can Ghost help with system design interviews?
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Yes. Screenshot the prompt or a diagram and Ghost outlines the key components, data flow, trade-offs and how to scale the design, which you can use as talking points.
How much does it cost?
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Every new account gets 20 free credits. A screenshot costs 2 credits and a text question 1 credit. Credit packs start at $10 for 200 credits, with no subscription.
Try the AI coding interview assistant free
20 free credits, every feature unlocked. No card, no subscription.
Download Ghost