Enterprise Voice AI platform for Speech-to-Text, Text-to-Speech, and Voice Agents
Spend controls, budgets and approvals for AI agents
Stage
Established
MVP
Founded
2015
Not given
Based in
US
Not given
Pricing model
Freemium
Freemium
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 plan: $0 during early access with 2 seats and 3 agents. Planned paid plans: Builder at $49/month with 5 seats and 25 agents; Scale at $199/month with 25 seats and 250 agents. Self-hosting is free.
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
Onchain allowances and epoch budgets
Escalation through reporting tree
Session keys with automatic expiration
Constitutional governance with veto windows
Declared flows and human gates
Slack and Telegram supervision
Visual org builder and workspace
Apache-2.0 open source contracts and SDK
Inference budgets for model and API calls
Integration with Coinbase AgentKit and Safe
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
Bounded blast radius: compromised agents can only spend remaining epoch allowance on whitelisted targets
Passkey root stays on user's device; cloud holds only scoped, expiring session keys
Fully self-hostable open protocol with Apache-2.0 licensing
Approval workflows follow real organizational structure, not smart contract code
No token or cryptocurrency knowledge required to use the cloud platform
Deepgram
LaCrew