LangSmith Pricing
Starting price
$39/month
Pricing model
Paid
Free tier
Yes
Free trial
No
Plans
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Developer | $0 | month · per seat | $0/seat official; 1 seat; 5k base traces / month then pay-as-you-go |
| Plus | $39 | month · per seat | $39/seat/month official; Unlimited seats; 10k base traces / month then pay-as-you-go |
| Enterprise | — | month | Quote; Hybrid or self-host; Custom SSO |
Figures are the vendor's published prices. Unknown values show as “—”. Price-history tracking is not yet available for this tool. Price verified 2026-10-01. Last updated 2026-10-09.
True cost
True cost calculator
| Plan | Listed | Seat basis | Monthly · 5 seats | Annual · 5 seats |
|---|---|---|---|---|
| Developer | $0/seat/month | per seat | $0 | $0 |
| Plus | $39/seat/month | per seat | $195 | $2,340 |
Estimate from published prices. Per-seat plans scale with seats; flat plans don't; plans with included seats charge the base until you exceed them, then add the per-seat overage where published. Monthly/annual come from each plan's billing period. Taxes and add-ons excluded.
LangSmith's starting price ($39) is 65% below the AI Agents & Assistants average of $113.
Adapt (a Datapipe company)