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Langfuse vs LlamaIndex

Side-by-side comparison with live GitHub signals. Last updated July 17, 2026.

L

Langfuse

Open-source LLM engineering platform — traces, evals, prompt management — 23K+ stars

OSSfreemium
31.3Ktoday187
L

LlamaIndex

Data framework for LLM applications — RAG, agents, and workflows — 47K+ stars

OSSFree
50.9Ktoday475
MetricLangfuseLlamaIndex
GitHub Stars31.3K50.9K
Contributors187475
Last CommitJul 17, 2026Jul 16, 2026
Open Issues711551
Licenseopen-sourceopen-source
Pricingfreemiumopen-source
Free TierYesYes
Categorydev-toolsdev-tools
TrendingNoNo

Shared Tags

open-source

Only in Langfuse

observabilitytracingevaluationprompt-managementanalytics

Only in LlamaIndex

ragdata-frameworkagentsworkflowspython

About Langfuse

Langfuse is an open-source LLM engineering platform providing observability, analytics, and prompt management. Features distributed tracing for complex agent chains, evaluation scoring, prompt versioning and A/B testing, dataset management, and cost tracking. Integrates with LangChain, LlamaIndex, OpenAI SDK, and any LLM framework via OpenTelemetry.

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About LlamaIndex

LlamaIndex is the leading data framework for building LLM-powered applications. Provides data connectors for 160+ sources, advanced RAG pipelines, document agents, and a workflow engine for complex agentic applications. The standard for connecting LLMs to your data.

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