It's not even "nearly as good as o1". They only compared to the older 4o.
You can safely assume Qwen2.5-Max will score worse than all of the recent reasoning models (o1, DeepSeek-R1, Gemini 2.0 Flash Thinking).
It'll probably become a very strong model if/when they apply RL training for reasoning. However, all the successful recipes for this are closed source, so it may take some time. They could do SFT based on another model's reasoning chains in the meantime, though the DeepSeek-R1 technical report noted that it's not as good as RL training.
And so they decide to not disclose their own training information just after they told everyone how useful it was to get Deepseeks? Honestly can't say I care about "nearly as good as o1" when its a closed API with no additional info.