🦜️🔗 LangChain Features

This page contains status indicators about the various features LangChain provides.

Prompt Templates

Feature Python TypeScript
Prompt Template✅✅
Few Shot Prompt Template✅✅
Output Parsers✅✅
Example Selectors✅✅

Text Splitters

Feature Python TypeScript
Character Text Splitter✅✅
Recursive Character Text Splitter✅✅
Markdown Text Splitter✅✅

Chains

Feature Python TypeScript
LLM Chain✅✅
Stuff Combine Documents Chain✅✅
Map Reduce Combine Documents Chain✅✅
Refine Combine Documents Chain✅✅
Map Rerank Combine Documents Chain✅❌
Chat Vector DB Chain✅✅
Vector DB QA Chain✅✅
Analyze Document Chain✅✅
Question Answering Chains✅✅
Summarization Chains✅✅
Question Answering With Sources Chains✅❌
SQL Database Chain✅✅
API Chain✅❌
Transformation Chain✅❌
Constitutional Chain✅✅
Conversational Chain✅✅
Graph QA Chain✅❌
HyDE Chain✅❌
LLM Bash Chain✅❌
LLM Math Chain✅❌
PAL Chain✅❌
LLM Requests Chain✅❌
Moderation Chain✅✅
Sequential Chain✅✅
Simple Sequential Chain✅✅

Agents

Feature Python TypeScript
zero-shot-react-description✅✅
chat-zero-shot-react-description✅✅
self-ask-with-search✅❌
react-docstore✅❌
conversational-react-description✅❌
chat-conversational-react-description✅✅

Memory

Feature Python TypeScript
Buffer Memory✅✅
Buffer Window Meory✅✅
Summary Memory✅✅
Entity Memory✅❌
Summary Buffer Memory✅❌
Knowledge Graph Memory✅❌