LLM as online judge
• 85 words • 1 min • updated
In 2025 it is quite comfortable to use LLMs (GenAI) to grade your code submissions (from LeetCode, HackerRank, etc).
Not only do they give you near-instant feedback (for performance, readability, consistency) and code analysis, but they can also spot mistakes that would otherwise take you precious tens of minutes of time to debug1.
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While it’s important to spend some time debugging the code yourself, there’s a lost opportunity cost when getting stuck, yielding lost time that could have been spent resolving more (diverse, interesting) problems. ↩︎