Microsoft AI Releases MAI-Transcribe-2-Streaming: #1 Real-Time Speech-to-Text Model on Artificial Analysis
Microsoft AI has released MAI-Transcribe-2-Streaming, its first streaming speech-to-text (STT) model. It launched on October 1, 2026, alongside 2 text-to-speech models, MAI-Voice-2.1 and MAI-Voice-2.1-Flash. Artificial Analysis ranks it #1 of 38 models for final and first partial transcript accuracy. The model targets voice agents, live captions and dictation, where latency decides the experience. What Microsoft Shipped MAI-Transcribe-2-Streaming is the real-time sibling of the batch MAI-
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Microsoft AI released a real-time speech-to-text model that converts spoken audio into text while a speaker is still talking, rather than requiring them to finish first. According to independent testing, it ranks first among 38 competing models for accuracy, delivering both initial partial transcripts and final versions with equal 2.5% error rates at extremely low latency. The model supports 60 languages with automatic detection and costs $0.54 per hour under an introductory pricing structure. This capability matters for applications like voice agents and live captioning where speed and accuracy determine user experience.
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