SeizureTransformer is a deep learning-based model for simultaneous time-step level seizure detection from long EEG recordings.The model consists of a deep encoder with 1D convolutions, a residual CNN stack, and a transformer encoder.SeizureTransformer effectively handles long-range patterns in EEG data and outperforms existing approaches in seizure detection.The model ranked first in the 2025 "seizure detection challenge" and shows potential for real-time, precise seizure detection.