LangChain vs LlamaIndex
A side-by-side comparison to help you choose between LangChain and LlamaIndex.
| LangChain | LlamaIndex | |
|---|---|---|
| Description | Open-source agent framework and LangSmith platform for building, testing, deploying, and monitoring reliable AI agents. | Developer framework and document automation platform for building context-aware AI agents, RAG pipelines, and document workflows. |
| Category | 自动化 Agent 与集成 | 自动化 Agent 与集成 |
| Pricing | freemium · LangChain and LangGraph are free open-source frameworks. LangSmith pricing starts with a Developer plan at $0/seat/month, then usage-based billing after included trace limits. Plus costs $39/seat/month and adds team features, deployment access, Sandboxes, Engine, email support, and higher included trace volume. Enterprise is custom and adds custom seats, trace volume, SSO/RBAC, SLA, annual contracts, and cloud/hybrid/self-hosted options. | freemium · LlamaIndex OSS is open source. The commercial LlamaParse / LlamaCloud platform uses credits for parsing, indexing, extraction, classification, splitting, sheets, and hosted agent workflows. The official pricing page lists 1,000 credits = $1.25 in both North America and Europe. Free includes 10K credits per month. Starter is $50/month with 40K included credits and pay-as-you-go up to 400K credits. Pro is $500/month with 400K included credits and pay-as-you-go up to 4,000K credits. Enterprise is custom. Paid plans keep running with overage billed at the standard credit rate, while Free returns a 402 error after credits are exhausted until the next billing cycle. |
| Rating | 4.4 | 4.3 |
| Features | Tracing and observabilityEvaluation and scoringAgent deploymentSandboxed code executionNo code Fleet agentsMulti framework support | Agentic document OCRStructured data extractionAuto correction loopsHandwriting recognitionTable extractionChart parsing |
| Website | Visit | Visit |
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