Compare · llm & agent observability
Langfuse vs Opik (Comet) pricing
At 1M traces/month, Opik (Comet) is the cheaper list price ($264 vs $451).
| Langfuse | Opik (Comet) | |
|---|---|---|
| Free tier | Hobby: 50K units/month free, no credit card. Self-hosting the MIT-licensed core is free. | Free Cloud: 25K spans/month, up to 10 team members, 60-day retention. Open source: unlimited, self-hosted. |
| Billing unit (LLM & agent observability) | units | spans |
| First paid plan | Core: $29/mo | Pro Cloud: $19/mo |
| Pricing data | Published pricing | Published pricing |
| Company status | Acquired | Active |
| Open source / self-host | Yes / Yes | Yes / Yes |
| Last checked | 2026-10-19 | 2026-10-19 |
LLM & agent observability: estimated monthly cost
| traces / month | Langfuse | Opik (Comet) |
|---|---|---|
| 100K | $69.00 Core | $39.00 Pro Cloud |
| 1M | $451 Core | $264 Pro Cloud |
| 10M | $3,931 Core | $2,514 Pro Cloud |
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 |
| Opik (Comet) | |
|---|---|
| Open Source | $0 Self-host |
| Free Cloud | $0 25K spans/mo |
| Pro Cloud | $19/mo 100K spans, then $5/100K spans; extra retention $29/100K spans |
| Enterprise | Contact sales |
Recent news
Sources
- Langfuse pricing page retrieved 2026-10-19
- Comet/Opik pricing page retrieved 2026-10-19