Compare · llm & agent observability
Langfuse vs LangSmith pricing
At 1M traces/month, Langfuse is the cheaper list price ($451 vs $4,989).
| Langfuse | LangSmith | |
|---|---|---|
| Free tier | Hobby: 50K units/month free, no credit card. Self-hosting the MIT-licensed core is free. | Developer: $0, 1 seat, 5K base traces/month, then pay-as-you-go. |
| Billing unit (LLM & agent observability) | units | traces |
| First paid plan | Core: $29/mo | Plus: $39 / seat / mo |
| Pricing data | Published pricing | Published pricing |
| Company status | Acquired | Active |
| Open source / self-host | Yes / Yes | No / No |
| Last checked | 2026-10-19 | 2026-10-19 |
LLM & agent observability: estimated monthly cost
| traces / month | Langfuse | LangSmith |
|---|---|---|
| 100K | $69.00 Core | $489 Plus (1 seat) |
| 1M | $451 Core | $4,989 Plus (1 seat) |
| 10M | $3,931 Core | $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
| Langfuse | |
|---|---|
| Hobby | $0 50K units/month |
| Core | $29/mo 100K units included, then $8/100K (lower with volume) |
| Pro | $199/mo 100K units included, same unit rates |
| Teams add-on | $300/mo |
| Enterprise | $2,499/mo |
| 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
- Langfuse pricing page retrieved 2026-10-19
- LangSmith pricing page retrieved 2026-10-19