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Head to head · 2026

AutoGen vs LangChain

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

AutoGen

Microsoft's research framework for agents that talk to each other

4.3Free

Visit AutoGen (opens AutoGen in a new tab)

LangChain

The open-source framework behind 90 million monthly downloads and 35% of the Fortune 500

4.4Free

Visit LangChain (opens LangChain in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: AutoGen does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    LangChain

    4.3 against 4.4

  • Same job?

    Yes

    Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared onAutoGenLangChain
Our rating4.34.4Better
Starts atFreeFree
Free planYesYes
CategoryAI Infrastructure & Agent ToolingAI Infrastructure & Agent Tooling
PlansFree
  • Developer$0/seat/mo
  • Plus$39/seat/mo
  • EnterpriseCustom
Key features
  • Multi-agent conversation framework for collaborative task solving
  • Open-source Python library from Microsoft Research
  • Customizable agent roles and conversation patterns
  • Influenced many later multi-agent framework designs
  • No hosted service, runs in a developer's own environment
  • Standard building blocks for chains, retrieval, memory, and tool calling
  • Free, open-source core framework with a massive existing ecosystem
  • 90 million combined monthly downloads with LangGraph as of 2026
  • 35% of the Fortune 500 reported building on LangChain's tooling
  • $260M raised total, $1.25B valuation as of October 2025
Pros
  • Strong research pedigree as a pioneering multi-agent framework
  • Full code-level control over agent roles and conversation logic
  • Free and open source with an active community
  • Free, open-source core with no licensing cost for the framework itself
  • Massive adoption means abundant documentation, examples, and community support
  • Foundational building blocks reduce repetitive LLM-application plumbing
Cons
  • Requires real Python development skill, not a no-code tool
  • No visual interface or hosted option
  • Underlying LLM API costs apply on top of the free framework
  • Production observability and hosted deployment require separate paid products
  • Broad, general-purpose scope can mean more setup than a narrower, purpose-built tool
  • Fast-moving library with frequent updates can require ongoing maintenance
CompanyMicrosoft, founded 2023LangChain, founded 2022

Prices come from each vendor's pricing page, last checked 20260714. Check the vendor before you buy.

FAQ

Questions people ask

Is AutoGen better than LangChain?

In our reviews AutoGen scores 4.3 and LangChain scores 4.4. The better pick depends on the job. AutoGen: Microsoft's research framework for agents that talk to each other. LangChain: The open-source framework behind 90 million monthly downloads and 35% of the Fortune 500.

Which is cheaper, AutoGen or LangChain?

AutoGen: free. LangChain: free.

Do AutoGen and LangChain have free plans?

Yes, both have a free plan.

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