The Yuefu poem Peacock Flying Southeast, not counting punctuation, has more than 1800 words.
Cai Wenji's eighteen beats of Hu Jia in Han Dynasty, not counting punctuation, are about 1300 words.
Wei Zhuang, a poet in the late Tang Dynasty and the Five Dynasties, wrote "Ode to Fu Qin", which is more than 1600 words without punctuation.
These four poems are all long poems of thousands of words.