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LangChain
productai_framework
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Overview
Developed byHarrison Chase
Maintained byLangChain AI Inc
Founded byHarrison Chase
Founded2022
LicenseMIT License
Open source✓ Open Source
Primary languagePython
Use casebuilding applications with large language models
Technical
Protocols
REST APIsREST API
Also see
Alternative to
LlamaIndex
Based onPython
Competes with
LlamaIndex
Knowledge graph stats
Claims67
Avg confidence93%
Avg freshness99%
Last updatedUpdated 3h ago
Trust distribution
100% unverified
Governance
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LangChain

product — also known as: LangChain AI, LangChain Inc

Most widely adopted LLM orchestration framework for building AI applications in Python and JavaScript

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package manager

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PyPI○UnverifiedHighFresh1
pip○UnverifiedHighFresh1

open source

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true○UnverifiedHighFresh1

based on

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Python○UnverifiedHighFresh1

requires

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Python○UnverifiedHighFresh1
Python 3.8+○UnverifiedHighFresh1

written in

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

programming language

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Python○UnverifiedHighFresh1
JavaScript○UnverifiedHighFresh1
Python, JavaScript/TypeScript○UnverifiedHighFresh1

integrates with

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OpenAI GPT models○UnverifiedHighFresh1
OpenAI○UnverifiedHighFresh1
Anthropic○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
pgvector○UnverifiedHighFresh1
Weaviate○UnverifiedHighFresh1
Qdrant○UnverifiedHighFresh1
ChromaDB○UnverifiedHighFresh1
Pinecone○UnverifiedHighFresh1
Hugging Face○UnverifiedHighFresh1
OpenAI○UnverifiedHighFresh1
Anthropic Claude○UnverifiedHighFresh1
Vector databases○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
Pinecone○UnverifiedHighFresh1
Anthropic○UnverifiedHighFresh1
Hugging Face models○UnverifiedHighFresh1
Chroma○UnverifiedHighFresh1
ChromaDB○UnverifiedModerateFresh1

license type

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MIT License○UnverifiedHighFresh1

supports database

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vector databases○UnverifiedHighFresh1

supports feature

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prompt templates○UnverifiedHighFresh1
Document loaders○UnverifiedHighFresh1
document loading and processing○UnverifiedHighFresh1
vector databases○UnverifiedHighFresh1
retrieval augmented generation○UnverifiedHighFresh1

primary use case

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building applications with large language models○UnverifiedHighFresh1
building applications powered by large language models○UnverifiedHighFresh1

supports model

ValueTrustConfidenceFreshnessSources
OpenAI GPT models○UnverifiedHighFresh1
OpenAI GPT○UnverifiedHighFresh1
Anthropic Claude○UnverifiedHighFresh1
GPT-4○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
Claude○UnverifiedHighFresh1

developed by

ValueTrustConfidenceFreshnessSources
Harrison Chase○UnverifiedHighFresh1

programming language support

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JavaScript○UnverifiedHighFresh1

supports language

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JavaScript○UnverifiedHighFresh1

has javascript version

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LangChain.js○UnverifiedHighFresh1

maintained by

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LangChain AI Inc○UnverifiedHighFresh1
LangChain AI○UnverifiedHighFresh1
LangChain Inc○UnverifiedHighFresh1
LangChain Inc.○UnverifiedHighFresh1

founded year

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2022○UnverifiedHighFresh1

founded by

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Harrison Chase○UnverifiedHighFresh1

founded in

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2022○UnverifiedHighFresh1

pricing model

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Open source with commercial services○UnverifiedModerateFresh1
Free open source with paid cloud services○UnverifiedModerateFresh1
Free open source with paid enterprise features○UnverifiedModerateFresh1
Free open source with commercial support○UnverifiedModerateFresh1
freemium○UnverifiedModerateFresh1

supports protocol

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REST APIs○UnverifiedModerateFresh1
REST API○UnverifiedModerateFresh1

supports framework

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Streamlit○UnverifiedModerateFresh1

alternative to

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LlamaIndex○UnverifiedModerateFresh1

competes with

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LlamaIndex○UnverifiedModerateFresh1

Alternatives & Similar Tools

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Commonly Used With

OpenAI GPT modelsOpenAIAnthropicHugging Face TransformerspgvectorWeaviateQdrantChromaDBPineconeHugging FaceOpenAIAnthropic ClaudeVector databasesHugging Face TransformersPineconeAnthropicHugging Face modelsChromaChromaDB

Related entities

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65 entities depend on LangChain
TrulensAgentopsRagasMarqoOllamaElasticsearch VectorRedis VectorLangSmith
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Claim count: 67Last updated: 4/10/2026Edit history