| What it does | The agent observability and evaluation platform.
| Traces, tokens, and cost for every AI app.
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| Stage | Established
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| Founded | Not given
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| Based in | Not given
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| Pricing model | freemium
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| Pricing | Not given
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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
| - Trace inspection for model calls and tool steps
- Token usage and cost tracking
- Error and latency analysis
- Cost comparison by model and provider
- Data capture and redaction controls
- TypeScript SDK
- Python SDK
- OpenTelemetry/OTLP integration
- Trace search and filtering
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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
| - Built on OpenTelemetry standard
- Automatic cost calculation from token usage
- Support for multiple language SDKs and frameworks
- Privacy controls for prompt and completion storage
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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 | 12 ● no change since last check |
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| Trust Flow (Majestic) | 34 | 21 |
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| Citation Flow (Majestic) | 54 | 26 |
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| Referring domains (Majestic) | 5527 | 90 |
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