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IMO 2025 LLM results are in (matharena.ai)
5 points by arberavdullahu 7 months ago | hide | past | favorite | 1 comment


> Grok-4 significantly underperformed compared to expectations. Many of its initial responses were extremely short, often consisting only of a final answer without explanation.

this is very weird. given how verbose most models usually are, there must have been something wrong in the system prompt.

also: grok used 89996 input tokens compared to 591624 for o3 high. What kind of tokenizer are they using that compresses the input so much? I suppose all inputs are actually the same, since the math problem + instructions are the same. only difference is the tokenizer or the system prompt. but i suppose it would not make up the difference. is o3 using 500k more tokens for their system prompt?




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