BetterWhisperX is an improved automatic speech recognition model based on WhisperX, offering fast speech-to-text services with word-level timestamps and speaker identification features. This tool is vital for researchers and developers handling large volumes of audio data, as it significantly enhances the efficiency and accuracy of speech data processing. The product is built on OpenAI's Whisper model with further optimizations and improvements. Currently, the project is free and open-source, aiming to provide the developer community with more efficient and accurate speech recognition tools.