Enterprise Voice AI platform for Speech-to-Text, Text-to-Speech, and Voice Agents
Private numbers for AI agents
Stage
Established
MVP
Founded
2015
Not given
Based in
US
US
Pricing model
Freemium
Not given
Pricing
Flux STT Streaming: $0.0065/min (Pay As You Go), $0.0057/min (Growth); Flux Multilingual Streaming: $0.0078/min (Pay As You Go), $0.0068/min (Growth); Nova-3 Monolingual Streaming: $0.0048/min (Pay As You Go), $0.0042/min (Growth); Nova-3 Multilingual Streaming: $0.0058/min (Pay As You Go), $0.0050/
Free: $0/month with 30 calls per month, 3 app numbers + 2 remote numbers. Pro: $9.99/month with 100 calls per month. Scale: $29.99/month with unlimited calls.
Key features
Flux STT with turn detection and interruption handling
Nova-3 multilingual speech recognition in 50+ languages
Ultra-low latency under 300 milliseconds
Keyterm prompting with up to 90% higher keyword recall
Flux TTS with latency as low as 80ms
Speaker diarization and multi-speaker audio detection
Smart formatting with automatic punctuation and capitalization
Automatic redaction of sensitive information
Custom models for edge-case scenarios
Flexible deployment options: cloud, in-VPC, or self-hosted
Private phone numbers for agents
Call approval system
App and plugin integration
Call recording and transcription
Cross-device agent connections
Number blocking and removal
What makes it different
Conversation-aware speech platform with native turn-taking detection and interruption handling
Unified single API combining STT, TTS, and LLM orchestration to reduce complexity and latency
Flux TTS that thinks before speaking to maintain tone and expression across conversations
Enterprise-grade accuracy with custom vocabulary injection and industry-tuned models
Foundational AI company with research-driven innovation and continuous model improvements
Deepgram
ForAgent