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Software Development · head to head

LangSmith vs TeamCity

LangSmith logo

LangSmith

Software Development

Know what your agents are really doing

From
Free
Rated
-
Full reviewWebsite
TeamCity logo

TeamCity

Software Development

JetBrains continuous integration and delivery server

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: LangSmith usage-based pricing applies beyond included traces; LCU charges at $1.50/LCU and LSU at $1.00/LSU; TeamCity detailed pricing requires visiting a calculator and isn't transparent on the main pricing page.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which LangSmith and TeamCity actually diverge.

Attributes where LangSmith and TeamCity differ
AttributeLangSmithTeamCity
PlatformsWebweb, windows, mac, linux, api

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (Software Development).

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 LangSmith

Nothing recorded that TeamCity does not also cover.

Only in TeamCity

  • Build Chains
  • Parallel Test Execution
  • VCS Integration
  • Build History & Analytics
  • Docker & Kubernetes Support
  • Access Control

What people use each for

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

LangSmith

  • Tracing agent execution step-by-step in productionnot TeamCity
  • Detecting agent failures affecting latency and costnot TeamCity
  • Monitoring token usage and latency percentilesnot TeamCity
  • Clustering traces to identify failure modesnot TeamCity
  • Self-hosting traces within VPC for data residencynot TeamCity

TeamCity

  • Running build and test pipelines for enterprise software teamsnot LangSmith
  • Self-hosting CI/CD infrastructure behind a firewallnot LangSmith
  • Coordinating multi-stage build chains with dependenciesnot LangSmith
  • Scaling build capacity with additional agentsnot LangSmith

Where each one falls short

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

LangSmith

  • Usage-based pricing applies beyond included traces; LCU charges at $1.50/LCU and LSU at $1.00/LSU
  • Free tier limited to 1 seat and 5,000 traces per month

TeamCity

  • Detailed pricing requires visiting a calculator and isn't transparent on the main pricing page.
  • Self-hosted setup and agent management require more operational overhead than fully managed CI/CD services.
  • Additional build agents and users are priced incrementally, which can add up for larger teams.
  • The UI and configuration model have a steeper learning curve compared to YAML-first CI tools.

Pricing, plan by plan

LangSmith

Free
  • DeveloperFree
    • 1 seat maximum
    • 5,000 base traces monthly
  • Plus$39/month
    • Unlimited seats
    • 10,000 base traces monthly
    • 1 free small serverless deployment
  • Enterprise$null/mo
    • Custom pricing
    • Self-hosted and hybrid options
    • Custom SSO, ABAC, RBAC

TeamCity

Free
  • Free TierFree
    • Includes 3 build agents
    • 100 build configurations
    • On-premises or Cloud
  • TeamCity Cloud / On-Premises$undefined/month
    • Priced per additional build agent
    • Additional users on Cloud plans
    • Enterprise support options

Which should you pick?

Choose LangSmith if

  • You want to start without paying.
LangSmith review

Choose TeamCity if

  • You need build chains.
  • You want to start without paying.
  • You work on web, windows, mac, linux, api.
  • You also want parallel test execution.
TeamCity review

Questions people ask

Is LangSmith or TeamCity better?
Neither clearly leads. LangSmith starts at Free and TeamCity at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, LangSmith or TeamCity?
LangSmith starts at Free and TeamCity at Free.
Does LangSmith or TeamCity run on more platforms?
LangSmith runs on Web. TeamCity runs on web, windows, mac, linux, api.
Can I use LangSmith for free?
Both have a free tier, so you can try either at no cost before committing.
What is LangSmith best used for?
LangSmith is most often used for tracing agent execution step-by-step in production, detecting agent failures affecting latency and cost, monitoring token usage and latency percentiles, clustering traces to identify failure modes. Of those, tracing agent execution step-by-step in production and detecting agent failures affecting latency and cost are not what TeamCity is typically brought in for.
What can LangSmith do that TeamCity cannot?
TeamCity covers Build Chains, Parallel Test Execution, VCS Integration, Build History & Analytics.

Answered from the vendors’ own pages

LangSmith: What does LangSmith cost?

LangSmith Developer plan is free with up to 5,000 base traces monthly. Plus plan costs $39/month per seat with 10,000 base traces included. Enterprise pricing is custom.

Source
TeamCity: How much does TeamCity cost?

TeamCity offers a free download option but specific pricing for commercial use is not detailed on the website. Customers must contact JetBrains for licensing and pricing information.

Source
LangSmith: How does LangSmith usage-based pricing work?

Beyond included traces, LangSmith charges $1.50 per LCU (LangChain Compute Unit) for computational work and $1.00 per LSU (LangChain Storage Unit) for data storage.

Source
TeamCity: Is TeamCity free to use?

TeamCity has a free option available for download, but full pricing and licensing details require contacting JetBrains directly.

Source
LangSmith: Is there a free tier for LangSmith?

Yes, the Developer plan is free with limits on seat count (1 seat maximum) and trace volume (5,000 base traces per month).

Source
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