Features
Transcribe MP3, WAV, M4A, FLAC, AAC, OGG, OPUS, WEBM, AMR, WMA, MP4, MOV, AVI, MKV
99.9% transcription accuracy with accent and noise handling
Support for 90+ languages and regional dialects
Automatic speaker identification and labeling
Batch processing: upload multiple files at once
Export to TXT, DOCX, SRT, VTT, Markdown, CSV, PDF
File uploads up to 5 GB and 10 hours per file
Drag-and-drop file upload
AI summary generation (condense transcripts)
Unlimited storage on paid plans
Priority email support on paid plans
No signup required for short free audio
Free trial: 60 minutes after signup
Pre-recorded speech-to-text (Universal-3.5 Pro, 18 languages)
Pre-recorded speech-to-text (Universal-2, 99 languages)
Real-time streaming speech-to-text (Universal-3.5 Pro Realtime with Context Carryover)
Voice Agent API with built-in turn detection and interruption handling
Speech Understanding API (speaker ID, sentiment, chapters, summaries)
Guardrails for inline PII redaction and content moderation
LLM Gateway routing across GPT, Claude, and Gemini with fallback
Keyterms Prompting to improve accuracy for specific terms
Agent Management API to store and manage agent configurations
HTTP Tool Calling for Voice Agent API (no proxy server needed)
Production-ready Python and TypeScript SDKs
Self-hosted Voice AI Cloud deployment for enterprise
No concurrency limits, no throttles, no forced commitments
Global redundancy and enterprise-grade uptime
Code-switching support (Universal-3.5 Pro)