Universal-3.5 Pro

AssemblyAI provides speech-to-text APIs and voice AI infrastructure that transcribe audio and extract insights from voice data. It solves the problem of building voice capabilities into products by offering models for transcription, speech understanding, and voice agents. The target audience is developers and data teams at B2B companies, from startups to enterprises. It is delivered as a cloud API with options for self-hosting, and it emphasizes scalability and enterprise-grade reliability.

Key features

• Pre-recorded Speech-to-Text API
• Realtime Speech-to-Text API
• Sync Speech-to-Text API
• Speech Understanding API
• Voice Agent API
• Guardrails and Safety
• LLM Gateway
• Self Hosted Voice AI
• Supports 99 languages
• Global redundancy and enterprise-grade uptime