📖 The AI Tool Bible

LangChain vs Runway

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 
LangChain
RAG
Runway
Video
TaglineThe broad LLM application framework — chains, agents, retrievers.Pro-grade AI video editor and Gen-4 generation.
CategoryRAGVideo
PricingFreemium· Free open-source; LangSmith paidPaid· $15/mo Standard; $35/mo Pro; $95/mo Unlimited
ModelBYO (any major LLM)Gen-4
Editorial score8.3 / 109.0 / 10
Use cases
general LLM appsRAGagents
short filmVFXimage-to-video
Pros
  • Massive integration surface
  • Familiar to most LLM engineers
  • Pairs well with LangSmith for eval
  • TypeScript + Python
  • Pro editing timeline
  • Best-in-class control (motion brush, etc.)
  • Used in real productions
  • Generation + editing in one tool
Cons
  • API has changed a lot over time
  • Abstractions can leak
  • Expensive for hobby use
  • Render times can be long
Websitewww.langchain.comrunwayml.com
Pick LangChain if
  • Massive integration surface
  • Familiar to most LLM engineers
  • Pairs well with LangSmith for eval
  • TypeScript + Python
Pick Runway if
  • Pro editing timeline
  • Best-in-class control (motion brush, etc.)
  • Used in real productions
  • Generation + editing in one tool