LangSmith vs Langfuse
Ai Observability pricing comparison · 2026
LangSmith pricing ranges from $0–$500/seat/month + per trace, while Langfuse ranges from $0–$2499/month. LangSmith is typically 80% more affordable, though your actual cost depends on tier and team size.
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LangSmith and Langfuse both operate in the ai observability category. This page compares their published pricing.
Plan-by-Plan Pricing
| Plan | LangSmith | Langfuse |
|---|---|---|
| Developer | Free /seat/month | Free /month |
| Plus | $39 /seat/month | $29 /month |
| Enterprise | Custom | $199 /month |
| Enterprise | — | $2.5K /month |
Cost at Scale
Total cost of ownership — licenses, implementation, and hidden costs included.
LangSmith
4 scenarios$0/month (Developer plan)
Solo Developer
$39/month (Plus plan)
Small Dev Team
$117
Small Team (3–5 Developers)
$195/month (3–5 users × $39/user/month on Plus plan)
Langfuse
5 scenarios$0/month (Hobby plan)
Solo Developer or Hobbyist
$29/month (Core plan)
Small Team on Core Plan
$199/month (Pro plan)
Growing Team on Pro Plan