The 10 Best Open-Source Medical Speech-to-Text Tools

A guide ranks 10 open-source speech-to-text models for clinical use, evaluated on real-time accuracy, clinical terminology handling, operational reliability and data security. The list covers Vosk, DeepSpeech, SpeechBrain, OpenAI Whisper and ESPnet, matched to settings such as low-resource rural clinics, multilingual hospitals and terminology-heavy research centers. All can be integrated with Vapi's model-agnostic voice AI platform.