Skip to main content

Building applications with LLMs through composability

Project description

🦜️🔗 LangChain

⚡ Building applications with LLMs through composability ⚡

Release Notes lint test Downloads License: MIT Twitter Open in Dev Containers Open in GitHub Codespaces GitHub star chart Dependency Status Open Issues

Looking for the JS/TS version? Check out LangChain.js.

To help you ship LangChain apps to production faster, check out LangSmith. LangSmith is a unified developer platform for building, testing, and monitoring LLM applications. Fill out this form to speak with our sales team.

Quick Install

pip install gigachain_community or pip install langsmith && conda install gigachain_community -c conda-forge

🤔 What is this?

Large language models (LLMs) are emerging as a transformative technology, enabling developers to build applications that they previously could not. However, using these LLMs in isolation is often insufficient for creating a truly powerful app - the real power comes when you can combine them with other sources of computation or knowledge.

This library aims to assist in the development of those types of applications. Common examples of these applications include:

❓ Question answering with RAG

🧱 Extracting structured output

🤖 Chatbots

📖 Documentation

Please see here for full documentation on:

  • Getting started (installation, setting up the environment, simple examples)
  • How-To examples (demos, integrations, helper functions)
  • Reference (full API docs)
  • Resources (high-level explanation of core concepts)

🚀 What can this help with?

There are five main areas that LangChain is designed to help with. These are, in increasing order of complexity:

📃 Models and Prompts:

This includes prompt management, prompt optimization, a generic interface for all LLMs, and common utilities for working with chat models and LLMs.

🔗 Chains:

Chains go beyond a single LLM call and involve sequences of calls (whether to an LLM or a different utility). LangChain provides a standard interface for chains, lots of integrations with other tools, and end-to-end chains for common applications.

📚 Retrieval Augmented Generation:

Retrieval Augmented Generation involves specific types of chains that first interact with an external data source to fetch data for use in the generation step. Examples include summarization of long pieces of text and question/answering over specific data sources.

🤖 Agents:

Agents involve an LLM making decisions about which Actions to take, taking that Action, seeing an Observation, and repeating that until done. LangChain provides a standard interface for agents, a selection of agents to choose from, and examples of end-to-end agents.

🧐 Evaluation:

[BETA] Generative models are notoriously hard to evaluate with traditional metrics. One new way of evaluating them is using language models themselves to do the evaluation. LangChain provides some prompts/chains for assisting in this.

For more information on these concepts, please see our full documentation.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.

For detailed information on how to contribute, see the Contributing Guide.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

gigachain-0.2.16.tar.gz (443.9 kB view details)

Uploaded Source

Built Distribution

gigachain-0.2.16-py3-none-any.whl (1.0 MB view details)

Uploaded Python 3

File details

Details for the file gigachain-0.2.16.tar.gz.

File metadata

  • Download URL: gigachain-0.2.16.tar.gz
  • Upload date:
  • Size: 443.9 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: poetry/1.8.3 CPython/3.12.5 Darwin/23.6.0

File hashes

Hashes for gigachain-0.2.16.tar.gz
Algorithm Hash digest
SHA256 b48560762f9c4b015fad90911c38d55a6b8e76d63615f508a2f8d13bd24d440f
MD5 5a4eb5e0a3d2d074252200f1482a806b
BLAKE2b-256 408fc10ec19066378645ff351bacee29cde2276ab89be4e156b51f35003eb50a

See more details on using hashes here.

File details

Details for the file gigachain-0.2.16-py3-none-any.whl.

File metadata

  • Download URL: gigachain-0.2.16-py3-none-any.whl
  • Upload date:
  • Size: 1.0 MB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: poetry/1.8.3 CPython/3.12.5 Darwin/23.6.0

File hashes

Hashes for gigachain-0.2.16-py3-none-any.whl
Algorithm Hash digest
SHA256 f0325374dd73b7a2bdf3b44864651d5ba1a32742dfaac893b1045871982a60ce
MD5 97dd75f3d37dee39f6445ac587518f7c
BLAKE2b-256 4c9e846b6b84cf8e70db83edaac50030d9ffac09cf7fa84a9ac55e5afc6ca4ca

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page