Functions, Tools and Agents with LangChain
For: Engineers shipping their first LLM-with-tools app
Side-by-side comparison on level, duration, pricing, instructor, tier. Editor verdict on which course wins for which buyer.
The middle-of-the-curriculum short course bridging from prompt patterns to full agent loops. Covers OpenAI function calling, LangChain tools, OutputParsers, and the conversational-agent loop. Free, 90 minutes, taught by Harrison Chase. Take this after the LangChain for LLM App Development short course and before the LangGraph one — they form the canonical 3-course LangChain sequence.
The official deeper-dive into LangGraph from LangChain Academy. Where the DeepLearning.AI short covers basics in 90 minutes, this one goes 6-8 hours into state, persistence, human-in-the-loop, streaming, and the LangGraph Cloud deployment story. Free, taught by LangChain engineering. The canonical follow-up after the DL.AI short course if you're committing to LangGraph for production.
| Dimension | Functions, Tools and Agents with LangChain | Introduction to LangGraph (LangChain Academy) |
|---|---|---|
| Provider | DeepLearning.AI | LangChain Academy |
| Editorial tier | Hands-on reviewed | Hands-on reviewed |
| Level | Intermediate | Intermediate |
| Format | self paced | self paced |
| Duration | ~1.5 hours (5 lessons) | ~6-8 hours (8 modules) |
| Pricing | Free | Free |
| Instructor | Harrison Chase — Founder, LangChain | Lance Martin — LangChain Engineering |
| Rating | No public rating | No public rating |
| Topics | langchain, build ai agents, prompt engineering | langchain, langgraph, build ai agents |
| Last verified | 2026-05-24 | 2026-05-24 |
Take Introduction to LangGraph (LangChain Academy) first — it's the editor's pick on this topic. Functions, Tools and Agents with LangChain is a solid alternative; pick it if the format, instructor or price fit you better.
For: Engineers shipping their first LLM-with-tools app
For: Engineers committed to LangGraph for production agents
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