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Machine Learning · head to head

LangChain vs Tabnine

LangChain logo

LangChain

Machine Learning

Build applications with LLMs through composability

From
Free
Free plan
Yes
Full reviewWebsite
Tabnine logo

Tabnine

AI

AI coding agents built for enterprise privacy and control

From
$39/month
Free plan
No
Full reviewWebsite

The short version

  • Only LangChain has a free tier, so it costs nothing to try first.
  • Each has a real cost: LangChain the free Developer plan of LangSmith is limited to 1 seat; Tabnine no published free tier as of the current pricing page, unlike several competitors that offer free individual plans
  • They diverge on capability: LangChain covers Chains and agents, Tabnine covers Code Completions.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which LangChain and Tabnine actually diverge.

Attributes where LangChain and Tabnine differ
AttributeLangChainTabnine
Starting priceFree$39/month
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsLinux, Mac, Windowswindows, mac, linux, web
CategoryMachine LearningAI
Founded20222017

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 LangChain

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

Only in Tabnine

  • Code Completions
  • AI Chat
  • Agentic Workflows
  • Context Engine
  • Zero Code Retention
  • Flexible Deployment
  • Codebase Integrations

What people use each for

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

LangChain

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

Tabnine

  • Enterprise teams requiring on-premises or air-gapped AI coding toolsnot LangChain
  • Organizations with strict IP and data privacy requirementsnot LangChain
  • Teams wanting codebase-aware code completionsnot LangChain
  • Regulated industries needing compliance-certified AI toolingnot LangChain

Where each one falls short

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

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

Tabnine

  • No published free tier as of the current pricing page, unlike several competitors that offer free individual plans
  • Pricing is higher than many consumer-focused AI coding assistants, targeting enterprise budgets
  • Now owned by Tricentis, a testing-focused company, introducing uncertainty about long-term product direction outside quality engineering use cases
  • LLM usage costs apply separately when using Tabnine-provided model access, on top of the per-seat license fee

Pricing, plan by plan

LangChain

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

Tabnine

$39/month
  • Code Assistant Platform$39/month
    • AI code completions
    • AI chat across the SDLC
    • Works with all major IDEs
  • Agentic Platform$59/month
    • Everything in Code Assistant Platform
    • Autonomous coding agents
    • Customizable coaching guidelines

Which should you pick?

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

Choose Tabnine if

  • You need code completions.
  • You work on windows, mac, linux, web.
  • You also want ai chat.
Tabnine review

Questions people ask

Is LangChain or Tabnine better?
Neither clearly leads. LangChain starts at Free and Tabnine at $39/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, LangChain or Tabnine?
LangChain has a free tier; the other does not. Paid plans start at Free for LangChain and $39/month for Tabnine.
Does LangChain or Tabnine run on more platforms?
LangChain runs on Linux, Mac, Windows. Tabnine runs on windows, mac, linux, web.
Can I use LangChain for free?
Yes. LangChain has a free tier, so you can try it without paying. Tabnine starts at $39/month.
What is LangChain best used for?
LangChain is most often used for building llm applications and agents in python or javascript, tracing and debugging llm chains and agent runs, evaluating prompt and model changes against datasets. Of those, building llm applications and agents in python or javascript and tracing and debugging llm chains and agent runs are not what Tabnine is typically brought in for.
What can LangChain do that Tabnine cannot?
LangChain covers Chains and agents, Retrieval-augmented generation, Memory management, Tool integration. Tabnine covers Code Completions, AI Chat, Agentic Workflows, Context Engine.

Answered from the vendors’ own pages

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
Tabnine: What does Tabnine cost?

The Code Assistant Platform is $39/user/month and the Agentic Platform, which adds autonomous agents and the CLI, is $59/user/month, both billed as annual subscriptions.

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
Tabnine: Is there a free plan?

Tabnine's pricing page does not list a permanent free tier; both published plans are paid per-seat subscriptions aimed at professional and enterprise teams.

Source
Tabnine: Does Tabnine charge extra for LLM usage?

Usage is unlimited when connecting your own on-prem or cloud LLM endpoint, but additional fees apply when using Tabnine-provided model access on top of the seat license.

Source
Tabnine: What deployment options does Tabnine support?

Tabnine can be deployed as SaaS, in a private VPC, fully on-premises, or in a completely air-gapped environment to meet enterprise data-control requirements.

Source
Tabnine: What is included in the Agentic Platform tier?

It adds autonomous coding agents with optional human oversight, the Tabnine CLI, the Context Engine, MCP integration, and unlimited codebase connections beyond the base Code Assistant plan.

Source
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