| What it does | The agent observability and evaluation platform.
| Enterprise Voice AI Platform for Phone Agents
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| Stage | Established
| Established
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| Founded | Not given
| 2023
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| Based in | Not given
| US
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| Pricing model | freemium
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| Pricing | Not given
| Per-minute pricing with three tiers: Start ($0.14/min, $0 platform fee), Build ($0.12/min, $299/month platform fee), and Enterprise (custom pricing). All plans include LLM, speech-to-text, and text-to-speech in the per-minute rate with no token charges or model-provider pass-throughs. Transfer rates
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| Key features | - Trace observability with OpenTelemetry compliance
- Comprehensive evaluation framework for span, trace, and session evals
- Alyx AI engineering agent for debugging and fixing issues
- Agent-first debugging for coding agents
- ADB datastore for GenAI traces in open formats
- Phoenix open-source platform for local-first tracing and evaluation
- Online evaluations on production traces
- Integration with 40+ models, frameworks, and AI tools
- Built on OpenInference and OpenTelemetry standards
- Certified security and compliance including SOC 2, ISO, PCI, GDPR, HIPAA
| - Inbound and outbound AI phone agents
- Omnichannel support across voice, SMS, iMessage, and web chat
- Scenario testing and edge case validation
- Pre-built integrations with CRM, telephony, scheduling tools
- Custom voice cloning
- 40+ language support with real-time translation
- Guardrails and compliance enforcement
- Warm and live transfer capabilities
- Self-hosted and on-premises deployment options
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| What makes it different | - Built by founders of OpenInference, the leading open standard for GenAI observability
- Signal surfaces what matters, uncovers root causes, and generates review-ready fixes automatically
- Processes 1 trillion spans and runs 1 billion evals per year at scale
- Flexible deployment with data staying under customer control
- Open-source-first approach with local-first option via Phoenix
| - All-in-one per-minute pricing covering LLM, STT, and TTS with no token charges
- Fully in-house built stack with no third-party model wrapping
- Enterprise-grade compliance (SOC 2, HIPAA, PCI DSS, GDPR) built in from day one
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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) | 78 ● no change since last check | 72 ● no change since last check |
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| Trust Flow (Majestic) | 34 | 27 |
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| Citation Flow (Majestic) | 54 | 51 |
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| Referring domains (Majestic) | 5527 | 5534 |
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