Universal-3.5 Pro: native code switching, our most accurate speaker diarization yet, and expanded language support

Universal-3.5 Pro, released by AssemblyAI, is an advanced asynchronous speech-to-text model designed to handle real-world audio challenges, including code-switching across 18 languages, speaker diarization, and contextual prompting for improved transcription accuracy. Unlike traditional systems, it captures code-switched speech natively without configuration, maintaining the integrity of conversations by accurately transcribing each language as spoken. The model excels in complex speaker diarization, providing speaker-annotated transcripts that mirror natural conversation flow, crucial for environments like call centers where interruptions and rapid exchanges are common. Contextual prompting enhances accuracy by allowing users to input domain-specific knowledge, making it particularly effective in specialized fields such as healthcare and call centers. With robust support for a wide range of languages and the ability to integrate real-world context into transcriptions, Universal-3.5 Pro is positioned as a foundational tool for industries that rely on precise and reliable transcription capabilities.

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