We’re going to be analyzing an earlier version of eloranker (~2k tokens) using the bf16 version of the model.

Source

Overall Rankings:

1. new sonnet-3.5 (A): Best combination of finding real bugs and providing concrete fixes
2. o1-preview (A-): Found the most critical bug but included some generic feedback
3. 4o (B): Some good specific points but missed critical bugs
4. qwen (C-): Almost entirely generic feedback with few specific issues identified

o1-preview: Grade A-

Strengths

• Found the most critical bug: the rating update issue where the second item uses the updated rating of the first item instead of its pre-match rating
• Identified a specific stability logic flaw where items could oscillate between stable/unstable states
• Pointed out how this could cause progress to decrease, which is a subtle implication of the stability flaw
• Suggestions were concrete and included code examples

Weaknesses

• Some generic comments about "lack of persistence" and "thread safety" that aren't really bugs in this implementation
• The comment about magic numbers is less relevant since they are validated in validateConfig

4o: Grade B

Strengths

• Good catch on potential memory issues with recentRatingChanges