AssemblyAI
Speech-to-text APIs with audio intelligence, speaker diarization, and real-time streaming
AssemblyAI provides speech-to-text APIs and audio intelligence models. Core features include async transcription in 99+ languages, real-time streaming with ~300ms latency, and speaker diarization. Audio Intelligence add-ons cover sentiment analysis, topic detection, entity recognition, content moderation, summarization, and PII redaction. LeMUR enables LLM-based reasoning over transcripts. Supports virtually every audio and video format. Free tier includes $50 in credits (approximately 185 hours of transcription).
Pricing: Pay-as-you-go
Choosing a speech-to-text API right now?
One click, anonymous. Helps us know our visitors.
Thanks, that helps.
Choosing a speech-to-text API right now?
One click, anonymous. Helps us know our visitors.
Thanks, that helps.
AssemblyAI Alternatives
Explore 29 products in the Audio category. View all AssemblyAI alternatives.
Deepgram
Build Voice AI into your apps.
Gladia
Fast speech-to-text API with real-time transcription and speaker diarization
Munsit
Arabic speech-to-text and text-to-speech APIs with dialect support and on-premises deployment
Cartesia
Real-time voice AI with ultra-low latency text-to-speech and voice cloning in 40+ languages
Fish Audio
Text-to-speech and voice cloning API, with Fish Speech weights published under a research licence
Work on AssemblyAI? Feature it at the top of Audio.
Is your product missing?