Langfuse vs Arize Phoenix
Ai Observability pricing comparison · 2026
Langfuse pricing ranges from $0–$2499/month, while Arize Phoenix ranges from $0–$1000/month. Arize Phoenix is typically 75% more affordable, though your actual cost depends on tier and team size.
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Langfuse and Arize Phoenix both operate in the ai observability category. This page compares their published pricing.
Plan-by-Plan Pricing
| Plan | Langfuse | Arize Phoenix |
|---|---|---|
| Hobby | Free /month | Free /month |
| Core | $29 /month | Free /month |
| Pro | $199 /month | $50 /month |
| Enterprise | $2.5K /month | Custom |
Cost at Scale
Total cost of ownership — licenses, implementation, and hidden costs included.
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
Arize Phoenix
6 scenarios$0/month
Solo Developer — Self-Hosted Open Source
$50/month
Small Team — AX Pro Hosted
Custom — contact Arize
Enterprise Team — AX Enterprise