This is a submission for the Kaggle Benchmarking Challenge . I built a Kaggle benchmark to test whether coding agents can make a real CPU inference program faster while preserving its tested behavior. Gemini, Claude and GPT read, edit and test the C source of Karpathy’s llama2.c under the same tool-call and editing limits. Their resulting programs run TinyStories checkpoints of 15M, 42M and 110M parameters across several request workloads. The benchmark evaluates both the edited program ...