OpenAI Coding Interview Questions

These are the 40 OpenAI coding interview questions AceOffer has reconstructed from candidate reports, sorted by how often each was reported. GPU Credit Management System leads at 40×. Every question shows when it was last reported; the catalog refreshes monthly.

Key facts

  • 40 distinct coding questions indexed
  • 370 candidate reports across those questions
  • Most reported: GPU Credit Management System — 40× (last seen April 2026)
  • Refreshed monthly · last updated July 2026

Most reported OpenAI coding questions

Sorted by candidate-report frequency. Click any question for the full breakdown.

QuestionRoundReportedLast seen
GPU Credit Management SystemFreeCoding40×April 2026
Key-Value Store Design and ImplementationCoding39×May 2026
Disease/Epidemic Spreading SimulationCoding38×May 2026
In-Memory SQL / Database ImplementationCoding34×February 2026
Toy Language: Type Inference and ASTCoding30×April 2026
Resumable List/File IteratorCoding20×August 2025
Classifier Training and AnalysisCoding19×April 2026
Distributed Machine Count (Tree Network)Coding18×April 2026
ML Coding: MLP/RNN Forward/Backward PropagationCoding15×April 2026
IP Address / CIDR IteratorCoding15×May 2026
Chatbot / Bot Message Router RefactoringCoding12×May 2026
Two-Team Turn-Based Combat SystemCoding10×April 2026
Memory Allocator ImplementationCoding8×March 2026
Python Dependency Version ControlCoding7×April 2026
NumPy Puzzle / VectorizationCoding7×April 2026
Social Network Follower/Followee with Temporal QueriesCoding7×April 2026
KV Cache Implementation for InferenceCoding6×March 2026
Excel Sheet Cell Dependencies and Cycle DetectionCoding4×April 2025
Text Editor (Buffer, Undo/Redo, Autocomplete, Collaboration)Coding4×April 2026
File/Folder Deduplication and NavigationCoding3×April 2026
Staff / Beat Notation ConversionCoding3×May 2025
IP Address Account Registration / Fraud DetectionCoding3×September 2025
Jetpack Compose / UI Components ImplementationCoding3×May 2026
CD Directory NavigationCoding2×October 2025
Rate Limiter ImplementationCoding2×May 2026
Track / Account BalanceCoding2×March 2025
Binary Search / Version Search with Rate LimitingCoding2×August 2025
Dynamic Human Labeling / Task SchedulingCoding2×April 2026
Bitwise OperationsCoding2×May 2025
Stack Trace / Profile StackCoding2×July 2025
RL Bug Finding / DebuggingCoding2×March 2026
Overlapping Key Range / Shard RebalancingCoding1×February 2026
Load Balancing with Multi-Tag ConstraintsCoding1×April 2026
Entropy Calculation with Numerical Stability and StreamingCoding1×April 2026
Shortest Path to Visit All Points on a GridCoding1×October 2025
Largest Sub-Grid in 2D ArrayCoding1×October 2025
Game of LifeCoding1×November 2025
Implement ChatGPT-like React Interface with StreamingCoding1×March 2026
Shortest Path in Tree Network Visiting All Task NodesOA1×November 2025
Minimum Steps to Target Number via Modular AdditionOA1×November 2025

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FAQ

How many coding questions does OpenAI ask?
AceOffer has reconstructed 40 distinct OpenAI coding interview questions from 370 verified candidate reports, each with verbatim follow-ups and a last-reported date.
What is the most common OpenAI coding interview question?
GPU Credit Management System — reported 40 times, last seen April 2026.
How fresh is AceOffer's OpenAI coding question data?
The catalog is refreshed monthly from new candidate reports, and every question shows when it was last reported.

Get the full OpenAI catalog

Every question, every candidate-reported follow-up, plus the AI mock interviewer. Monthly refresh.