LangWatch
An observability and evaluation platform for large language model applications. It provides benchmarking capabilities including LLM-as-Judge, enabling users to evaluate and monitor the performance of LLM-based systems.
Timeline (last 90 days)
The article compared 12 AI agent observability and evaluation tools, including BotGauge, Braintrust, Confident AI, LangSmith, Langfuse, Arize Phoenix, Galileo, LangWatch, Pydantic Logfire, Latitude, Datadog LLM Observability, and Fiddler.
Braintrust pricing starts free, with the Pro version at $249/month; Confident AI starts free, with the Starter version at $200/month; LangSmith starts free, with the Plus version at $39/seat/month; Langfuse is free, with paid versions starting at $29/month; Arize Phoenix is free, with the cloud version starting at $50/month; Galileo is free, with the Pro version starting at $100/month; LangWatch is free, with paid versions starting at €29/seat/month; Pydantic Logfire is free, with the Team version starting at $49/month; Latitude is free, with the Pro version at $99/month; Datadog LLM Observability is billed by usage; Fiddler is custom-quoted.
The all-in-one platforms category contains 21 tools, with representative projects including Langfuse, MLflow, Opik, Agenta, and LangWatch.
LangWatch's LLM-as-judge benchmark results show: OpenAI Decisions at 75.2% accuracy, 243 ms median latency, and $1.09 per 1,000 calls; TypeSafe Jev at 63.7% accuracy, 429 ms median latency, and $0.42 per 1,000 calls.
All Facts (4)
The article compared 12 AI agent observability and evaluation tools, including BotGauge, Braintrust, Confident AI, LangSmith, Langfuse, Arize Phoenix, Galileo, LangWatch, Pydantic Logfire, Latitude, Datadog LLM Observability, and Fiddler.
50%UnverifiedBraintrust pricing starts free, with the Pro version at $249/month; Confident AI starts free, with the Starter version at $200/month; LangSmith starts free, with the Plus version at $39/seat/month; Langfuse is free, with paid versions starting at $29/month; Arize Phoenix is free, with the cloud version starting at $50/month; Galileo is free, with the Pro version starting at $100/month; LangWatch is free, with paid versions starting at €29/seat/month; Pydantic Logfire is free, with the Team version starting at $49/month; Latitude is free, with the Pro version at $99/month; Datadog LLM Observability is billed by usage; Fiddler is custom-quoted.
50%UnverifiedThe all-in-one platforms category contains 21 tools, with representative projects including Langfuse, MLflow, Opik, Agenta, and LangWatch.
50%UnverifiedLangWatch's LLM-as-judge benchmark results show: OpenAI Decisions at 75.2% accuracy, 243 ms median latency, and $1.09 per 1,000 calls; TypeSafe Jev at 63.7% accuracy, 429 ms median latency, and $0.42 per 1,000 calls.
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