| What it does | Enterprise Voice AI platform for Speech-to-Text, Text-to-Speech, and Voice Agents
| AI Agent Control Plane: Observability & Governance
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| Stage | Established
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| Founded | 2015
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| Based in | US
| IN
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| Pricing model | Freemium
| Freemium
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| 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/month with 50K events/month and 7-day retention. Team plan: $299/month with 2M events/month and 90-day retention. Business plan: $799/month with 10M events/month and 1-year retention. Enterprise plan: Custom pricing with volume pricing, custom retention, and unlimited policies.
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| 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
| - Unified Agent Registry across LangChain, CrewAI, and OpenAI Agents SDK
- End-to-End OpenTelemetry-native tracing with full execution visibility
- Accurate cost tracking across 2,500+ models independent of trace sampling
- PII and sensitive data detection with optional redaction and hard blocks
- Prompt registry with versioning, comparison, and production label protection
- Datasets, scorers, and experiment framework with evidence-attached promotion
- Framework-agnostic design supporting dynamic agent identity and multi-agent systems
- Real-time health scores and dashboard for agent performance monitoring
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| 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
| - Only platform that enforces policies mid-execution instead of alerting after the fact
- Zero runtime overhead guardrail detection using passive span processor inspection
- Accurate cost totals at any sampling rate through OTEL metrics per LLM call
- Framework-agnostic and portable through OpenTelemetry-native SDK design
- Enterprise-grade security with SOC 2 Type II and RBAC built in
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 81 ● no change since last check | 24 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 23 | 6 |
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| Citation Flow (Majestic) | 51 | 31 |
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| Referring domains (Majestic) | 7761 | 159 |
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