AssemblyAI
Build with accurate speech recognition and voice AI models through modular and easy-to-integrate APIs.
Overview
AssemblyAI is a voice AI infrastructure platform providing accurate transcription models. It offers developer APIs for Speaker Diarization, Language Detection, Real-time Streaming STT, Auto Chapters, Sentiment Analysis, and Conversational Voice Agents.
Key features
14 highlightsSpeaker Diarization
Automatic Language Detection
Pre-recorded Speech-to-Text
Real-time Streaming STT
Synchronous Short STT
Voice Agent API
Sentiment Analysis
Auto Chapters
PII Redaction
Profanity Filtering
Medical Mode
Voice Focus
Custom Spelling
Filler Words Detection
Pricing
Pricing not confirmed
We haven't verified a structured pricing table from the vendor's website. Check the tool's official pricing page for the latest.
Pros
- Achieves a low 2.9% speaker diarization error rate.
- Supports multilingual speaker diarization across 95 languages.
- Language detection API supports 99 different languages.
- API integration is simple, requiring less than 10 lines of code to get started.
- Supports both pre-recorded audio and real-time streaming speech-to-text.
- Voice Agent API enables deployable conversational voice agents over browser or phone.
- Provides specialized features like Auto Chapters, Sentiment Analysis, PII Redaction, and Medical Mode.
- Integration capabilities with LiveKit, Pipecat, and Twilio are supported.
Cons
- Specific pricing schedules and tier rates are not listed within the crawled snippets.
- No free-tier usage limits or trial size details are disclosed in the retrieved content.
- No mobile-native SDKs (like iOS or Android) are explicitly referenced in the documentation index.
- The exact compliance certifications (such as SOC2 or HIPAA) are not verified in the snippets.
- The core transcription models are proprietary and not provided as open source.
Platforms
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