Langfuse Cost Calculator
Enter requests per month, observations (spans/generations) per request and scores per request, then pick Hobby, Core, Pro, Pro + Teams or Enterprise. The calculator returns billable units, graduated overage, plan base, monthly total and $ per 1k requests, matching Langfuse's published examples. Self-hosted OSS is free (infra not modeled). Estimates only; langfuse.com/pricing prevails.
Math runs in your browser. Nothing is uploaded.
Monthly total
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Per 1k requests
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Breakdown
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Formula: units = requests × (1 trace + observations + scores). Paid plans include 100k units, then graduated overage: 100k–1M $8.00, 1M–10M $7.00, 10M–50M $6.50, 50M+ $6.00 per 100k units. Plans: Hobby free (50k units, 30-day access, 2 users, no overage), Core $29 (90-day access), Pro $199 (3-year access), Teams add-on +$300, Enterprise $2,499. Official examples: Core 200k = $37 · Core 1M = $101 · Pro 5M = $551 · Pro + Teams 25M = $2,176 · Enterprise 100M = $8,801. Self-hosted OSS is free (infrastructure not modeled).
Estimates only. Official list prices as of 2026-11-02 (Asia/Shanghai); the provider's pricing page prevails. Sources: Langfuse pricing
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How it works
- How does Langfuse Cloud pricing work?
- Langfuse bills units: every trace, observation (span, generation, event) and score counts as one unit. Hobby is free with 50k units/month; Core ($29), Pro ($199) and Enterprise ($2,499) include 100k units, then graduated overage applies.
- What are the overage tiers?
- Beyond the included 100k units: $8.00 per 100k from 100k to 1M, $7.00 per 100k from 1M to 10M, $6.50 per 100k from 10M to 50M and $6.00 per 100k above 50M. Each tier only prices the units inside it.
- Do the results match Langfuse's own examples?
- Yes: Core 200k units = $37, Core 1M = $101, Pro 5M = $551, Pro + Teams 25M = $2,176 and Enterprise 100M = $8,801, as published on langfuse.com/pricing on 2026-11-02.
- What happens on Hobby above 50k units?
- Hobby has no paid overage path. The calculator flags any workload above 50k units/month so you can move to Core or reduce sampling.
- Is self-hosted Langfuse free?
- The open-source self-hosted version has no license fee, but you pay for your own infrastructure (Postgres, ClickHouse, Redis, object storage), which this calculator does not model.