AssemblyAI
AI models to transcribe and understand speech.
Transcription Accuracy
High
API Uptime
99.9%+
Free Tier
Available
About AssemblyAI
AssemblyAI offers a suite of speech-to-text and audio intelligence APIs that empower developers to build applications with voice data. Their core offering is highly accurate speech recognition, available in both real-time (streaming) and asynchronous modes. Beyond simple transcription, their models can perform tasks like summarization, PII redaction, topic detection, sentiment analysis, and speaker diarization. They emphasize ease of use for developers with a straightforward API, comprehensive documentation, and a free tier to start building. This makes them suitable for a wide range of use cases, from transcribing meetings and calls to analyzing media content and powering voice-activated controls.
Core AI Models
Speech-To-Text
Transcribe audio and video files with high accuracy.
Real-Time Transcription
Transcribe live audio streams for applications like live captioning.
Summarization
Generate summaries of transcribed text.
Pii Redaction
Automatically detect and redact sensitive personal information.
Topic Detection
Identify the main topics of a conversation.
Developer Features
Api Playground
Test and experiment with AssemblyAI's models directly in the browser.
Sdks
Available for popular languages like Python, Node.js, and Go.
Webhooks
Receive notifications about the status of your transcription jobs.
Comprehensive Documentation
Detailed guides and API reference to help you get started.