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Software Development · head to head

Devin vs LangChain

Devin logo

Devin

Software Development

Autonomous AI software engineer planning and executing code in its own environment

From
On request
Rated
-
Full reviewWebsite
LangChain logo

LangChain

Machine Learning

Build applications with LLMs through composability

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only LangChain has a free tier, so it costs nothing to try first.
  • Each has a real cost: Devin pricing not published; specific costs and plan tiers require signup or contact with sales; LangChain the free Developer plan of LangSmith is limited to 1 seat

Where they differ

Only the attributes on which Devin and LangChain actually diverge.

Attributes where Devin and LangChain differ
AttributeDevinLangChain
Starting priceOn requestFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsDesktop, Windsurf integration, WebLinux, Mac, Windows
CategorySoftware DevelopmentMachine Learning
FoundedUnknown2022

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Devin

Nothing recorded that LangChain does not also cover.

Only in LangChain

  • Chains and agents
  • Retrieval-augmented generation
  • Memory management
  • Tool integration
  • Prompt templates
  • OpenAI
  • Anthropic
  • Hugging Face

What people use each for

The jobs each tool is most often brought in to do.

Devin

  • Feature implementation and ticket resolution in established codebasesnot LangChain
  • Code migrations and refactoring at scale across repositoriesnot LangChain
  • Bug fixing and debugging with test-driven verificationnot LangChain
  • Rapid prototyping and proof-of-concept developmentnot LangChain
  • Repetitive implementation tasks freeing human engineers for complex designnot LangChain

LangChain

  • Building LLM applications and agents in Python or JavaScriptnot Devin
  • Tracing and debugging LLM chains and agent runsnot Devin
  • Evaluating prompt and model changes against datasetsnot Devin

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Devin

  • Pricing not published; specific costs and plan tiers require signup or contact with sales
  • Cannot handle extremely difficult tasks reliably; success rate decreases with task complexity
  • Requires clear, well-scoped task descriptions; ambiguous requirements reduce effectiveness
  • Requires human oversight and integration into existing workflows; not fully autonomous

LangChain

  • The free Developer plan of LangSmith is limited to 1 seat
  • Base traces are retained for 14 days only; 400 day retention costs extra
  • Included traces are capped at 5,000 per month on Developer and 10,000 per month on Plus, with everything beyond billed pay as you go
  • Self hosted and hybrid deployment of LangSmith is Enterprise only
  • Custom SSO, RBAC and ABAC are Enterprise only
  • A support SLA is Enterprise only
  • Enterprise pricing is by quote with no published rate

Pricing, plan by plan

Devin

On request

No published plan breakdown. See the Devin review.

LangChain

Free
  • Open SourceFree
    • Full framework
    • Community support
  • LangSmith$39/month
    • Debugging
    • Monitoring
    • Testing

Which should you pick?

Choose Devin if

  • You work on Desktop, Windsurf integration, Web.
Devin review

Choose LangChain if

  • You need chains and agents.
  • You want to start without paying.
  • You work on Linux, Mac, Windows.
  • You also want retrieval-augmented generation.
LangChain review

Questions people ask

Is Devin or LangChain better?
Neither clearly leads. Devin starts at On request and LangChain at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Devin or LangChain?
LangChain has a free tier; the other does not. Paid plans start at On request for Devin and Free for LangChain.
Does Devin or LangChain run on more platforms?
Devin runs on Desktop, Windsurf integration, Web. LangChain runs on Linux, Mac, Windows.
Can I use LangChain for free?
Yes. LangChain has a free tier, so you can try it without paying. Devin starts at On request.
What is Devin best used for?
Devin is most often used for feature implementation and ticket resolution in established codebases, code migrations and refactoring at scale across repositories, bug fixing and debugging with test-driven verification, rapid prototyping and proof-of-concept development. Of those, feature implementation and ticket resolution in established codebases and code migrations and refactoring at scale across repositories are not what LangChain is typically brought in for.
What can Devin do that LangChain cannot?
LangChain covers Chains and agents, Retrieval-augmented generation, Memory management, Tool integration.

Answered from the vendors’ own pages

Devin: What does Devin cost?

Devin's pricing is not publicly listed on their website. Interested parties must request a demo to discuss pricing and availability.

Source
LangChain: Does LangChain charge for its services?

LangChain's main website does not display pricing. However, LangSmith (a related platform) offers both free and paid plans. Visit the dedicated pricing page or contact LangChain for details.

Source
Devin: How do I get access to Devin?

Devin is accessed by requesting a demo. There is no information about self-service signup, trial, or pricing on the public website.

Source
LangChain: How can I learn about LangChain pricing?

Click on the Pricing link in navigation or use the Try LangSmith or Get a demo options to explore pricing for LangChain's commercial offerings.

Source
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