LangChain framework is open source and free. LangSmith (observability platform) free up to 5,000 traces/month, Developer $39/month, Plus $99/month. Enterprise custom pricing.

Free plan with 10,000 source images and 3 private workspaces. Starter $249/month. Growth $749/month. Enterprise custom pricing.

Open source LangChain: data stays within your infrastructure. LangSmith cloud: review LangChain's data handling policy. Enterprise LangSmith includes data processing agreements.

Review Roboflow's data handling policy for uploaded images. Enterprise includes data processing agreements. Training images may be used to improve platform capabilities unless opted out.

• ✓Most widely adopted LLM application framework with large community
• ✓Integrates with virtually every LLM provider and vector database
• ✓RAG and agent patterns well-supported with established conventions
• ✓LangGraph enables complex stateful multi-agent workflows

• ✓Reduces ML expertise required for custom computer vision models
• ✓200K+ public datasets in Roboflow Universe provide starting points
• ✓End-to-end platform from labelling to deployment
• ✓Flexible deployment targets including edge devices

• ✕Abstraction layer adds complexity for simple use cases
• ✕Learning curve for understanding chains, agents, and retrieval patterns
• ✕Framework has been criticised for unnecessary abstraction in some scenarios
• ✕LangSmith observability requires separate setup and subscription

• ✕Starter plan at $249/month is expensive for smaller teams
• ✕Advanced model customisation requires ML expertise beyond the platform
• ✕Free plan limits restrict production use