LangSmith pricing
Prices below were read from LangSmith's own page on 2026-10-19. Open the pricing page.
Agent observability & evals
| Vendor | Plan | Listed price (as on vendor page) | $/mo | Free tier | Source | Status | Checked |
|---|---|---|---|---|---|---|---|
| LangSmith | Plus | $39 per seat per month, then pay as you go Traces billed in LSU units ($1.00 / LSU). | $39/mo | Developer: $0/seat, 1 seat | source | verified | 2026-10-19 |
Alternatives to LangSmith
All LangSmith alternatives compared → · Full agent observability & evals comparison