LangSmith Free Plan 2026: What's Included & What's Not
Honest breakdown of the free tier limits and features
LangSmith costs Free to $500 per seat/month + per trace as of April 2026. Pricing depends on your chosen tier, contract length, and negotiated discounts.
Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.
- Free tier: No free tier available
Yes, LangSmith offers a forever free plan as of April 2026. The free tier includes 4 features with limits on usage. Paid plans start at $39/seat/month (Plus). Pricing verified from 1 sources by CostBench.
LangSmith's free plan is available indefinitely with no time limit.
What's Included in the Free Plan
- 1 developer seat
- 5,000 base traces/month included
- 14-day trace retention
- Pay-as-you-go overages
What's NOT Included (Paid Only)
- Unlimited seats
- 10,000 base traces/month included
- 1 free dev-sized deployment
- Email support
You'll Need to Upgrade When...
- You exceed the user limit
- You need features like Unlimited seats or 10,000 base traces/month included
- You require premium support or SLA guarantees
- You need to remove branding or watermarks
- You need advanced integrations or API access
Hidden Restrictions on Free Plan
- LangSmith branding may appear on your content or communications
- Support is limited to community forums or email with longer response times
- Export options may be restricted or include watermarks
- API access is typically limited or not available
- Advanced reporting and analytics require paid plans
Free vs Paid: Which Do You Need?
Free Plan is Enough If...
- You're an individual or very small team
- You need only basic features
- You don't mind usage limits
- Branding on output is acceptable
- Community support is sufficient
You Need Paid If...
- Your team is growing beyond limits
- You need advanced features
- Professional branding is required
- You need priority support
- Integrations/API access is critical
Free vs Plus Plan Comparison
| Developer $0 | Plus $39/seat/month | |
|---|---|---|
| Features | 4 included | 5+ included |
| Support | Community/Email | Priority Support |
| Branding | LangSmith branding | Your branding |
| Best For | Individual developers getting started | Teams shipping LLM apps to production |
Frequently Asked Questions
01 Is LangSmith free?
Yes, LangSmith offers a forever free plan with 4 core features included. However, there are limits on users and features that may require upgrading.
02 What's included in LangSmith's free plan?
LangSmith's free plan includes: 1 developer seat, 5,000 base traces/month included, 14-day trace retention, Pay-as-you-go overages. Key limits include basic usage caps.
03 What's NOT included in LangSmith's free plan?
The free plan excludes: Unlimited seats, 10,000 base traces/month included, 1 free dev-sized deployment, Email support. You'll also have LangSmith branding and limited support options.
04 When should I upgrade from LangSmith's free plan?
Consider upgrading when: you hit user or storage limits, need features like Unlimited seats or 10,000 base traces/month included, require premium support, or want to remove branding. The cheapest paid plan starts at $39/seat/month.
05 Is LangSmith's free plan really free forever?
Yes, LangSmith's free plan is available indefinitely with no time limit. However, feature and usage limits may restrict what you can do without upgrading to a paid plan.