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Phoenix

Observability · Open source

Open source AI observability and evaluation platform for tracing LLM applications, running evals, and debugging agent behavior with OpenTelemetry.

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Weights & Biases Weave

Observability· wandb.ai

Open source

LLM observability and evaluation toolkit for tracing, debugging, and improving production agents and AI applications.

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Product evaluation

Review Phoenix for your team’s requirements before a technical pilot.

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Validate integration, deployment and operational requirements in your own environment.

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Braintrust

Observability· braintrustdata.com

Freemium

AI observability and evals platform for tracing production systems, running experiments, and catching regressions.

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Traceloop OpenLLMetry

Observability· traceloop.com

Open source

OpenTelemetry-based open-source instrumentation for tracing, monitoring, and debugging LLM applications across frameworks and providers.

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AgentOps

Observability· agentops.ai

Freemium

Developer platform for tracing, debugging, and deploying AI agents with SDK-based observability, session replay, and framework integrations.

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Python

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pip
pip install arize-phoenix \u0026\u0026 phoenix serve
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