Langchain
Framework for building LLM-powered apps — chains, agents, RAG, and memory.
About Langchain
LangChain is the most popular framework for building AI applications with LLMs. Provides tools for chains, agents, RAG, memory, and integrations with all major AI providers.
Key Features
💰 Pricing
Open-source framework free. LangSmith (monitoring) from $39/month.
Basic features with usage limits
Full features, higher limits, priority support
Custom deployment, team management, dedicated support
Frequently Asked Questions
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📊 Comparison vs Alternatives
| Feature | ||||
|---|---|---|---|---|
| Pricing | Freemium | Freemium | Freemium | Freemium |
| Rating | ⭐ 4.4 | ⭐ 4.8 | ⭐ 4.8 | ⭐ 4.6 |
| Free Tier | ✅ | ✅ | ✅ | ✅ |
| Popularity | 51% | 100% | 94% | 92% |
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