assemblyai.com
Advanced speech-to-text API with speaker diarization, sentiment analysis, and audio intelligence features.
AssemblyAI API provides state-of-the-art speech recognition with advanced audio intelligence features built for developers. Powered by its Universal and Slam-1 speech-language models, and beyond basic transcription, the platform offers speaker diarization, sentiment analysis, entity detection, content moderation, and topic classification from audio and video files.
The API supports real-time streaming transcription, batch processing, and multiple language options. Advanced features include automatic punctuation, custom vocabulary, profanity filtering, and PII redaction for compliance requirements. Models are continuously improved using cutting-edge deep learning research.
Developers building podcast apps, meeting transcription tools, call analytics systems, and media platforms rely on AssemblyAI for accurate, scalable speech processing. The platform offers simple REST API integration, webhooks for asynchronous processing, and comprehensive SDKs for popular programming languages.
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