Keywords AI

Langfuse vs Traceloop

Compare Langfuse and Traceloop side by side. Both are tools in the Observability, Prompts & Evals category.

Quick Comparison

Langfuse
Langfuse
Traceloop
Traceloop
CategoryObservability, Prompts & EvalsObservability, Prompts & Evals
PricingOpen Sourceopen-source
Best ForTeams who want open-source LLM observability they can self-host and customizeTeams already using Datadog/Splunk wanting LLM observability
Websitelangfuse.comtraceloop.com
Key Features
  • Open-source LLM observability
  • Detailed trace and span tracking
  • Prompt management
  • Evaluation scoring
  • Self-hosted and cloud options
  • OpenTelemetry
  • OpenLLMetry
  • Vendor-neutral
  • OTel integration
Use Cases
  • Self-hosted LLM monitoring
  • Open-source tracing for AI applications
  • Prompt versioning and management
  • Cost tracking across providers
  • Community-driven observability

When to Choose Langfuse vs Traceloop

Langfuse
Choose Langfuse if you need
  • Self-hosted LLM monitoring
  • Open-source tracing for AI applications
  • Prompt versioning and management
Pricing: Open Source

About Langfuse

Langfuse is an open-source LLM observability platform that provides tracing, analytics, prompt management, and evaluation for AI applications. It captures detailed traces of LLM calls, supports custom scoring, and integrates with LangChain, LlamaIndex, Vercel AI SDK, and raw API calls. Langfuse can be self-hosted for data privacy or used as a managed cloud service. Its open-source model and generous free tier make it popular with startups and developers.

About Traceloop

The OpenTelemetry standard for AI. Pipes LLM telemetry into Datadog, Splunk, or any OTel backend.

What is Observability, Prompts & Evals?

Tools for monitoring LLM applications in production, managing and versioning prompts, and evaluating model outputs. Includes tracing, logging, cost tracking, prompt engineering platforms, automated evaluation frameworks, and human annotation workflows.

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