Real-time vs batch transcription: What's the difference?

When developing Voice AI applications, choosing between real-time and batch transcription is crucial as these methods serve different needs. Real-time transcription converts live audio streams into text instantly, making it suitable for applications like voice assistants and live captions, where immediate interaction is essential despite a slight trade-off in accuracy. In contrast, batch transcription processes complete audio files post-recording, offering higher accuracy and advanced features, making it ideal for legal documentation, content creation, and research where precision is prioritized over speed. The decision largely depends on user expectations: real-time transcription is preferred for live interactions requiring rapid responses, while batch transcription is favored for analyzing and archiving recorded content with maximum accuracy. Modern Voice AI platforms, like AssemblyAI, provide both options through unified APIs, allowing developers to implement both methods within the same application to optimize for both immediate functionality and archival accuracy.