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TL;DR - LangChain
- Platform for building, evaluating, and deploying AI agents.
- Offers open-source frameworks (LangChain, LangGraph) and a commercial platform (LangSmith) for end-to-end agent development.
- Provides observability, evaluation, and scalable deployment for reliable, production-ready AI agents.
Pricing: Free plan available
Best for: Growing teams
Score: 87/100
Pros & Cons
Pros
- Great for AI apps
- Active development
- Large community
Cons
- Fast changing API
- Can be complex
Key Features
LLM frameworkChain buildingAgent creationMemory managementTool integrationOpen source
Pricing Plans
Developer
Free
Getting started
- 5,000 traces/month
- Basic features
- Community support
- LangSmith included
Plus
$39/month
Growing projects
- 100,000 traces/month
- All features
- Email support
- Longer retention
Enterprise
Large scale
- Unlimited traces
- SSO/SAML
- SLA
- Dedicated support
About LangChain
By Toolradar Team·
LangChain is a framework for building applications powered by large language models. Chain together LLM calls, tools, and memory for complex workflows. Build chatbots, agents, and QA systems over your documents. Supports OpenAI, Anthropic, Hugging Face, and local models. LangSmith provides observability and testing for LLM apps. The essential framework that's become the standard for LLM application development.
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LangChain FAQ
Is LangChain free?
Open-source core, LangSmith paid.
Source: langchain.com