AssemblyAI provides AI speech-to-text and audio intelligence APIs for developers. Beyond accurate transcription, it offers speaker diarization, sentiment analysis, topic detection, content moderation, and LeMUR — an LLM framework for processing transcribed audio with AI.
Type text or upload audio files
Generates speech, music, or enhances your audio
Export high-quality audio in your preferred format
Free tier ($50 credit). Pay-as-you-go at $0.37/hour (async) or $0.50/hour (real-time). Volume discounts.
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