LangSmith Pricing 2026
Plans, costs, and free options for LangSmith
Last updated: February 2, 2026
TL;DR: LangSmith Pricing
Pricing Model
Freemium
Starting Price
Contact sales
Free Option
Yes ✓
Freemium
Pricing Model
LangSmith offers a free tier with basic features, plus paid plans for users who need more advanced functionality.
Free Tier Available
Basic features included at no cost
Paid Upgrades
Premium features with paid plans
LangSmith vs Competitors: Pricing Comparison
See how LangSmith pricing compares to similar tools in AI Observability
| Tool | Free Tier | Starting Price | Score | |
|---|---|---|---|---|
LangSmithCurrent Debug, monitor, and optimize your LLM ap... | Yes | — | —/100 | Details → |
SigNoz Open-source APM and observability | Yes | $199/mo | 84/100 | Pricing → |
 Axiom Serverless log management and observabil... | Yes | $25/mo | 82/100 | Pricing → |
New Relic Observability made simple | Yes | $10/mo | 87/100 | Pricing → |
JaegerBest Value Open-source distributed tracing system | Yes | Free | 85/100 | Pricing → |
OpenTelemetryTop Rated Observability framework for cloud-native... | Yes | Free | 90/100 | Pricing → |
Uptrace Open-source APM with distributed tracing | No | — | 78/100 | Pricing → |
Prices shown are starting prices. Actual pricing may vary based on features and team size.
See all alternatives →LangSmith Pricing FAQ
How much does LangSmith cost?
LangSmith offers a free plan with limited features, plus paid plans for advanced functionality.
Is there a free version of LangSmith?
Yes, LangSmith offers a free tier with basic features. Upgrade to a paid plan for more functionality.
Does LangSmith offer a free trial?
Check LangSmith's official website for current trial offers.
What are cheaper alternatives to LangSmith?
Free or freemium alternatives include SigNoz, Axiom, New Relic. View our full comparison to find the best value.
How much does LangSmith cost?
LangSmith offers a free tier to get started. For more detailed pricing information and to find a plan that works for you, you need to visit their pricing page. They operate on a pay-as-you-go model for usage.
Is LangSmith free?
Yes, you can sign up for free to get started with LangSmith. They offer a free tier, and you only pay for what you use across all plan types.