| What it does | Enterprise Voice AI platform for Speech-to-Text, Text-to-Speech, and Voice Agents
| One endpoint for every MCP tool
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| Stage | Established
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| Founded | 2015
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| Based in | US
| US
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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 for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month.
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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
| - Source-built servers with TypeScript or Python projects
- Remote MCP, OpenAPI, npm package, and container image support
- Per-tool and per-argument access control policies
- Tool definition review and approval workflow
- Content scanning with literal and regex detectors
- Activity tracking and audit trails
- OIDC and SAML 2.0 single sign-on
- SCIM 2.0 provisioning
- Workspace-specific data encryption
- Custom domain publishing with DNS and Cloudflare certification
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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
| - One endpoint replaces every client config, eliminating need for each client to store every server and secret
- Coding agent builds the server automatically with no adapter needed
- Credentials held once by Rayrun instead of distributed across clients
- Built-in security review with published controls and audit trails for compliance teams
- Support for multiple service types without writing adapters
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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 | 45 ● no change since last check |
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| Trust Flow (Majestic) | 23 | 12 |
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| Citation Flow (Majestic) | 51 | 36 |
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| Referring domains (Majestic) | 7761 | 125 |
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Deepgram
Rayrun