Compare · llm & agent observability
Braintrust vs LangSmith pricing
At 1M traces/month, Braintrust is the cheaper list price ($36.00 vs $4,989).
| Braintrust | LangSmith | |
|---|---|---|
| Free tier | Starter: $0/mo, 1 GB processed data and 10K scores/month, unlimited users. | Developer: $0, 1 seat, 5K base traces/month, then pay-as-you-go. |
| Billing unit (LLM & agent observability) | GB | traces |
| First paid plan | Pro: $249/mo | Plus: $39 / seat / mo |
| Pricing data | Published pricing | Published pricing |
| Company status | Active | Active |
| Open source / self-host | No / No | No / No |
| Last checked | 2026-10-19 | 2026-10-19 |
LLM & agent observability: estimated monthly cost
| traces / month | Braintrust | LangSmith |
|---|---|---|
| 100K | $0 Starter | $489 Plus (1 seat) |
| 1M | $36.00 Starter | $4,989 Plus (1 seat) |
| 10M | $396 Starter | $49,989 Plus (1 seat) |
Estimate, check vendor page. Figures are list prices computed from publicly posted pricing on the "last checked" date. They exclude taxes, discounts, add-ons, seats and contract terms unless stated. Always confirm on the vendor's own pricing page.
Plans side by side
| Braintrust | |
|---|---|
| Starter | $0/mo 1 GB, then $4/GB; 10K scores, then $2.50/1K; $10 credits |
| Pro | $249/mo 5 GB, then $3/GB; 50K scores, then $1.50/1K; $100 credits |
| Enterprise | Contact sales |
| LangSmith | |
|---|---|
| Developer | $0 / seat Max 1 seat, 5K base traces/mo |
| Plus | $39 / seat / mo 10K traces included, then 0.005 LSU ($0.005) per additional base trace |
| Enterprise | Contact sales |
Recent news
Sources
- Braintrust pricing page retrieved 2026-10-19
- LangSmith pricing page retrieved 2026-10-19