# LangChain vs LlamaIndex

**Leader by vioscaleAI score:** LangChain

| Attribute | LangChain | LlamaIndex |
|---|---|---|
| **vioscaleAI score** | 79 (69% (medium)) | 65.1 (69% (medium)) |
| activity.commits_last_30d | 100 | 28 |
| adoption.dependent_repos | 18,663 | 0 |
| adoption.github_stars | 147,461 | 52,481 |
| adoption.package_downloads_weekly | 3,725,877 | 1,685,400 |
| content.faq | `[{"answer":"An agent engineering platform providing end-to-end observability, evaluation, and deployment capabilities for production AI agents with support for multiple frameworks and deployment modes. It is indexed under MLOps & LLMOps Tools.","source":"https://www.langchain.com/pricing","question":"What is LangChain?","confidence":0.6},{"answer":"LangChain is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. A commercial or hosted edition starts at $1. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.langchain.com/pricing","question":"Is LangChain free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to LangChain. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.langchain.com/pricing","question":"What platforms does LangChain support?","confidence":0.6},{"answer":"Yes. LangChain can be deployed cloud / SaaS, hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.langchain.com/pricing","question":"Can LangChain be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for LangChain, including OpenAI, Anthropic, Cohere, Google, Azure AI Search, Microsoft Fabric, Azure Kubernetes Service and OpaquePrompts. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.langchain.com/pricing","question":"What does LangChain integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for LangChain. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as LangChain not holding them. Always confirm compliance directly before you rely on it.","source":"https://trust.langchain.com","question":"What security certifications does LangChain have?","confidence":0.7},{"answer":"Yes. LangChain is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/langchain-ai/langchain","question":"Is LangChain open source?","confidence":0.99},{"answer":"LangChain is available worldwide. The vendor is headquartered in the United States.","source":"https://www.langchain.com/pricing","question":"Where is LangChain available?","confidence":0.75}]` | `[{"answer":"LlamaParse is a cloud-based document parsing platform that uses vision language models and intelligent agents to automatically process complex documents—including PDFs, images, and office files—with support for layout detection, multi-modal content, and 80+ languages. It transforms document ingestion workflows with agentic extraction and indexing capabilities. It is indexed under MLOps & LLMOps Tools.","source":"https://www.llamaindex.ai/pricing","question":"What is LlamaIndex?","confidence":0.6},{"answer":"LlamaIndex is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. A commercial or hosted edition starts at $50 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.llamaindex.ai/pricing","question":"Is LlamaIndex free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to LlamaIndex. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.llamaindex.ai/pricing","question":"What platforms does LlamaIndex support?","confidence":0.6},{"answer":"Not fully, on what we have confirmed. LlamaIndex is offered as cloud / SaaS and hybrid, and a hybrid deployment usually means some components can run on your own infrastructure while the rest stays vendor-hosted. We have not confirmed a completely self-hosted option, so check with the vendor if that is a requirement.","source":"https://www.llamaindex.ai/pricing","question":"Can LlamaIndex be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for LlamaIndex, including AWS, Microsoft Azure and GitHub. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.llamaindex.ai/pricing","question":"What does LlamaIndex integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for LlamaIndex. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as LlamaIndex not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.llamaindex.ai","question":"What security certifications does LlamaIndex have?","confidence":0.48},{"answer":"Yes. LlamaIndex is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/run-llama/llama_index","question":"Is LlamaIndex open source?","confidence":0.95},{"answer":"LlamaIndex is available worldwide. Its primary markets are the United States and the EU. The vendor is headquartered in the United States.","source":"https://www.llamaindex.ai/pricing","question":"Where is LlamaIndex available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true}` |
| description.long | A unified developer platform consisting of open-source frameworks and commercial tools for building, testing, monitoring, and deploying AI agents and LLM-powered applications. | A platform that uses AI models to parse and extract data from documents across 130+ file formats, supporting complex layouts, multiple languages, and multi-step extraction agents. Optimized for accuracy, cost, and latency at enterprise scale. |
| features.capabilities | `{"role":"observability","evaluation":true,"a2a_support":true,"mcp_support":true,"open_source":true,"managed_cloud":true,"model_serving":true,"pricing_model":"usage-based-saas","self_hostable":true,"multi_provider":true,"vpc_deployment":true,"otel_compatible":true,"deployment_model":"managed-platform","no_train_on_data":"unknown","streaming_output":true,"human_in_the_loop":true,"llm_observability":true,"prompt_management":true,"framework_agnostic":true,"multi_language_sdk":true,"experiment_tracking":true,"memory_architecture":"persistent","orchestration_model":"multi-agent-sequential","tool_function_calling":true,"code_execution_sandbox":true,"model_provider_agnostic":true}` | `{"role":"framework","evaluation":false,"soc2_type_ii":true,"managed_cloud":true,"model_serving":true,"pricing_model":"commercial_enterprise_platform","self_hostable":true,"multi_provider":true,"vpc_deployment":true,"otel_compatible":true,"no_train_on_data":"unknown","llm_observability":false,"prompt_management":false,"framework_agnostic":true,"experiment_tracking":false,"mit_or_apache_permissive_oss_license":false,"native_observability_and_trace_logging":true,"fault_tolerance_and_llm_retry_mechanisms":true,"native_memory_and_state_persistence_layer":false,"tool_calling_and_function_schema_validation":true,"managed_cloud_runtime_infrastructure_offered":true,"synchronous_and_asynchronous_execution_modes":true,"streaming_output_and_intermediate_step_yielding":true,"dynamic_agent_generation_and_spawning_at_runtime":true}` |
| integrations.count | 1,000 | 3 |
| integrations.list | `[{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Cohere"},{"name":"Google"},{"name":"Azure OpenAI"},{"name":"Azure AI Search"},{"name":"Microsoft Fabric"},{"name":"Azure Kubernetes Service"},{"name":"OpaquePrompts"},{"name":"AWS","native":true,"category":"cloud_platform","direction":"bidirectional"},{"name":"MCP (Model Context Protocol)","native":true,"category":"tool_framework","direction":"bidirectional"}]` | `[{"name":"AWS"},{"name":"Microsoft Azure"},{"name":"GitHub"}]` |
| language.primary | Python | Python |
| license.spdx | MIT | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Developer","summary":"Free, 1 seat, 5k traces/month","features":["1 free seat","5000 base traces per month","Full LangSmith access"],"minSeats":1,"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Personal projects with full LangSmith access and limited monthly trace allowance","contactSales":false,"includedLimits":{"traces":"5000/month"}},{"free":false,"name":"Plus","summary":"$39/seat/month, unlimited seats, 10k traces/month included","features":["Unlimited seats","10000 base traces per month","1 free small serverless deployment","Team collaboration","LangSmith Deployment service access"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"seat","amount":39,"period":"month","currency":"USD"}],"description":"Teams with moderate usage, collaboration needs, and one free small serverless deployment","contactSales":false,"includedLimits":{"traces":"10000/month","serverless_deployments":"1 small"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, annual billing","features":["Advanced administration options","Enhanced security controls","Priority support","Custom deployment options"],"commitment":"annual","description":"Advanced administration, enhanced security, and custom deployment options","contactSales":true}],"addOns":[{"name":"Serverless Deployments"},{"name":"Dedicated Deployments"}],"summary":"Free Developer plan. Plus plan from $39/user/mo with unlimited seats. Enterprise custom pricing billed annually.","currency":"USD","freeTier":true,"sourceUrl":"https://www.langchain.com/pricing","retrievedAt":"2026-10-05T11:09:38.893Z","startingPrice":{"unit":"seat","amount":39,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","features":["Basic support","100 users","130+ file formats","80+ languages supported"],"minSeats":100,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"10,000 credits per month","contactSales":false,"includedLimits":{"concurrent_parse_jobs":"20","external_data_sources":"1"}},{"free":false,"name":"Starter","features":["Basic support","Multiple parse tiers","Auto Mode with up to 80% savings","Saved parse configs","Advanced table/chart extraction","Structured JSON output"],"components":[{"kind":"fixed","amount":50,"period":"month","currency":"USD"}],"description":"Up to 400K credits per month","contactSales":false,"includedLimits":{"concurrent_parse_jobs":"100"}},{"free":false,"name":"Pro","features":["Priority Slack support","All parsing and extraction capabilities","Extraction agents","Webhooks & API callbacks","Smart result caching"],"components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"},{"kind":"one_time","amount":1000,"currency":"USD"}],"description":"400K credits per month plus 800K one-time bonus","contactSales":false},{"free":false,"name":"Pay-as-you-go","features":["Priority Slack support","Flexible credit usage up to $5,000/month"],"components":[{"per":{"qty":1,"unit":"credit"},"kind":"metered","amount":0.00125,"currency":"USD"}],"description":"Variable usage-based pricing","contactSales":false},{"free":false,"name":"Enterprise","features":["Volume discounts on credits","5x higher rate limits","Enterprise SSO","SaaS or Hybrid cloud deployment","Dedicated account manager","Custom SLAs"],"description":"Custom pricing with dedicated support","contactSales":true}],"summary":"Free (10K credits/month), Starter $50/month (400K credits), Pro $500/month (400K + 800K bonus), Pay-as-you-go up to $5,000/month, Enterprise custom","currency":"USD","freeTier":true,"sourceUrl":"https://www.llamaindex.ai/pricing","retrievedAt":"2026-10-13T22:31:28.854Z","startingPrice":{"amount":50,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | mid | mid |
| pricing.starting_price | `{"amount":39,"currency":"USD"}` | `{"amount":50,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 17 |
| release.history | 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| `[{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.25","date":"2026-09-21T16:22:27Z","type":"stable","version":"v0.14.25"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.24","date":"2026-08-19T18:48:01Z","type":"stable","version":"v0.14.24"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.23","date":"2026-06-24T19:36:43Z","type":"stable","version":"v0.14.23"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.22","date":"2026-05-14T20:22:24Z","type":"stable","version":"v0.14.22"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.21","date":"2026-04-21T00:18:51Z","type":"stable","version":"v0.14.21"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.20","date":"2026-04-03T19:55:51Z","type":"stable","version":"v0.14.20"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.19","date":"2026-03-25T20:59:15Z","type":"stable","version":"v0.14.19"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.18","date":"2026-03-16T19:42:07Z","type":"stable","version":"v0.14.18"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.16","date":"2026-03-10T19:20:35Z","type":"stable","version":"v0.14.16"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.15","date":"2026-02-18T19:06:42Z","type":"stable","version":"v0.14.15"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.14","date":"2026-02-10T23:08:46Z","type":"stable","version":"v0.14.14"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.13","date":"2026-01-21T20:44:52Z","type":"stable","version":"v0.14.13"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.12","date":"2025-12-30T01:07:03Z","type":"stable","version":"v0.14.12"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.10","date":"2025-12-04T19:46:03Z","type":"stable","version":"v0.14.10"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.9","date":"2025-12-02T21:31:18Z","type":"stable","version":"v0.14.9"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.8","date":"2025-11-10T22:18:42Z","type":"stable","version":"v0.14.8"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.7","date":"2025-10-30T23:58:43Z","type":"stable","version":"v0.14.7"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.6","date":"2025-10-26T03:01:31Z","type":"stable","version":"v0.14.6"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.5","date":"2025-10-15T19:10:56Z","type":"stable","version":"v0.14.5"},{"url":"https://github.com/run-llama/llama_index/releases/tag/v0.14.4","date":"2025-10-03T17:52:07Z","type":"stable","version":"v0.14.4"}]` |
| reliability.sla_pct | 99.5 | 99.9 |
| reliability.status_page | yes | yes |
| security.certifications | - | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | yes | yes |
| security.iso27001 | yes | - |
| security.scorecard | 5.8 | - |
| security.soc2 | yes | yes |
| security.trust_center | https://www.langchain.com/blog/building-governed-agents-a-framework-for-cost-control-and-compliance | https://www.llamaindex.ai/legal/privacy-notice |
| security.vulnerabilities | `{"count":21,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=langchain&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` | `{"count":10,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=llama-index-core&per_page=100","last_12m":1,"max_severity":"CRITICAL"}` |

## Capabilities (MLOps & LLMOps Tools)

| Capability | LangChain | LlamaIndex |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | LLM observability / eval | Agent / RAG framework |
| **Deployment** |  |  |
| Self-hostable / OSS core | ✓ | ✓ |
| Managed cloud available | ✓ | ✓ |
| On-prem / VPC deployment | ✓ | ✓ |
| **Observability** |  |  |
| LLM tracing / observability | ✓ | ✗ |
| Evaluation (offline / LLM-judge / human) | ✓ | ✗ |
| **Dev** |  |  |
| Prompt management + versioning | ✓ | ✗ |
| **Tracking** |  |  |
| Experiment tracking / model registry | ✓ | ✗ |
| **Serving** |  |  |
| Model serving / inference endpoint | ✓ | ✓ |
| **Interop** |  |  |
| OpenTelemetry / OpenLLMetry compatible | ✓ | ✓ |
| Framework-agnostic | ✓ | ✓ |
| **Gateway** |  |  |
| Multi-provider model support | ✓ | ✓ |
| **Data** |  |  |
| No-train-on-customer-data guarantee | Unknown | Unknown |

*Source: vioscaleAI. Generated 2026-10-16T21:45:56.959Z. "-" = undocumented, not absent.*