Software Development · head to head
Cursor vs LangSmith
The short version
- Each has a real cost: Cursor cannot work fully offline; AI features require internet connection; LangSmith usage-based pricing applies beyond included traces; LCU charges at $1.50/LCU and LSU at $1.00/LSU
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Cursor and LangSmith actually diverge.
Identical on both: starting price (Free), 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 Cursor
- AI code completion
- Natural language editing
- Codebase chat
- Multi-file editing
- Code generation
- Bug fixing assistance
- Refactoring suggestions
- AI pair programming
Only in LangSmith
Nothing recorded that Cursor does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Cursor
- AI-assisted codingnot LangSmith
- Code generationnot LangSmith
- Bug fixingnot LangSmith
- Refactoringnot LangSmith
- Learning new codebasesnot LangSmith
- Rapid prototypingnot LangSmith
LangSmith
- Tracing agent execution step-by-step in productionnot Cursor
- Detecting agent failures affecting latency and costnot Cursor
- Monitoring token usage and latency percentilesnot Cursor
- Clustering traces to identify failure modesnot Cursor
- Self-hosting traces within VPC for data residencynot Cursor
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Cursor
- Cannot work fully offline; AI features require internet connection
- Local models require requests to route through Cursor's backend, not true localhost support
- Free tier capped at 2,000 completions per month
- Codebase indexing uploads code chunks to compute embeddings, with file caching handled server-side
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
Pricing, plan by plan
Cursor
Free- HobbyFree
- 2,000 completions/month
- 50 slow premium requests
- Basic autocomplete
- Pro$20/month
- Unlimited completions
- 500 fast premium requests
- Composer multi-file editor
- Pro+$60/month
- 3x Pro limits on Agent requests
- Priority feature access
- Teams Standard$40/user/month
- All Individual Pro features
- Centralized billing
- SAML/OIDC SSO
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
Which should you pick?
Choose Cursor if
- You need ai code completion.
- You want to start without paying.
- You work on Windows, Macos, Linux.
- You also want natural language editing.
Questions people ask
- Is Cursor or LangSmith better?
- Neither clearly leads. Cursor starts at Free and LangSmith at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cursor or LangSmith?
- Cursor starts at Free and LangSmith at Free.
- Does Cursor or LangSmith run on more platforms?
- Cursor runs on Windows, Macos, Linux. LangSmith runs on Web.
- Can I use Cursor for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Cursor best used for?
- Cursor is most often used for ai-assisted coding, code generation, bug fixing, refactoring. Of those, ai-assisted coding and code generation are not what LangSmith is typically brought in for.
- What can Cursor do that LangSmith cannot?
- Cursor covers AI code completion, Natural language editing, Codebase chat, Multi-file editing.
Answered from the vendors’ own pages
Cursor: What's included in Cursor's free tier and what are its limits?
The free Hobby plan provides 2,000 completions per month and 50 slow premium requests, with access to basic autocomplete features. Codebase-wide indexing and the Composer multi-file editor are not available on the free plan.
SourceLangSmith: 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.
SourceCursor: Does Cursor require an internet connection to edit code?
While Cursor can open and edit files locally, its AI features including autocomplete, chat, agents, and codebase-aware reasoning require internet access to cloud-hosted models.
SourceLangSmith: 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.
SourceCursor: Can I use Cursor with local models running on my machine?
Cursor can integrate with local models, but requests still route through Cursor's backend for prompt building. True localhost mode without external endpoints is not supported. The paid plan ($20+/month) is required to use local models.
SourceLangSmith: 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).
SourceCursor: What privacy controls does Cursor offer?
Cursor offers Privacy Mode (enabled on paid Team plans) which prevents customer data from being used for model training, with zero data retention agreements with all AI providers. When disabled, Cursor may use codebase data to improve features.
SourceCursor: What are the differences between Pro and Pro+ plans?
Pro ($20/month) includes unlimited completions and 500 fast premium requests, while Pro+ ($60/month) provides 3x those request limits, priority feature access, and extended Agent capabilities.
SourceCursor: Does Cursor support SSO and on which plan?
SSO with SAML/OIDC is included on Teams Standard ($40/user/month) and higher plans, with full team administration and audit logs.
SourceRelated pages
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