LangSmith Pricing in 2026
3 plans, paid from $39, and a free plan.
Enterprise
Ask
Billed invoiced annually upfront; usage pay-as-you-go
self-hosted or hybrid deployment · custom SSO, ABAC and RBAC · support SLA
Developer
Free
Billed $0 per seat per month; usage pay-as-you-go
1 seat · 5,000 base traces/month · community support
Plus
$39/mo
Billed $39 per seat per month; usage pay-as-you-go
10,000 base traces/month · unlimited seats · 1 free small serverless deployment
Free plan · paid from $39/user/mo Read from LangSmith's pricing page on 15 Oct 2026.
What the alternatives cost
| Product | Free | Paid from |
|---|---|---|
| YoloRouter | Free plan | — |
| Manifest | Free plan | $19 |
| WSO2 AI Gateway | Free plan | $119 |
| LLM Gateway | Free plan | — |
| Bifrost | Free plan | — |
| TensorZero | Free plan | — |