An AI just walked into a pro-level coding tournament and absolutely smoked the world's best human programmers in real-time.
April 6, 2026
Original Paper
GrandCode: Achieving Grandmaster Level in Competitive Programming via Agentic Reinforcement Learning
arXiv · 2604.02721
The Takeaway
This marks the fall of one of the last major human bastions in programming, showing that AI can now handle high-pressure, novel problem-solving better than the best humans. It signals a major leap in autonomous software engineering capabilities.
From the abstract
Competitive programming remains one of the last few human strongholds in coding against AI. The best AI system to date still underperforms the best humans competitive programming: the most recent best result, Google's Gemini~3 Deep Think, attained 8th place even not being evaluated under live competition conditions. In this work, we introduce GrandCode, a multi-agent RL system designed for competitive programming. The capability of GrandCode is attributed to two key factors: (1) It orchestrates