Braintrust vs Langfuse Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| Braintrust pricing | Langfuse pricing | |
|---|---|---|
| Starts at | $249/mo | $29/mo |
| Number of plans | 3 | 4 |
| Free plan | ||
| Free trial | — | — |
| Pricing model | hybrid | hybrid |
Price is one row. To weigh the features too, use our feature comparison template →
Starter
- $10 credits
- 1 GB processed data
- 10k scores
- 14-day retention
- Unlimited users, projects, datasets, playgrounds, and experiments
Pro
- $100 credits
- 5 GB processed data
- 50k scores
- 30-day retention
- Custom charts, environments, priority support, RBAC, and more
Enterprise
- Custom data retention and export, RBAC, and premium support with on-prem or hosted deployment for high volume or privacy-sensitive data.
Hobby
- All platform features (with limits)
- 50k units / month included
- 30 days data access
- 2 users
- Community support via GitHub
Core
- Everything in Hobby
- 100k units / month included, additional: $8/100k units. Lower with volume (pricing calculator)
- 90 days data access
- Unlimited users
- In-app support
Pro
- Everything in Core
- 100k units / month included, additional: $8/100k units. Lower with volume (pricing calculator)
- 3 years data access
- Data retention management
- Unlimited annotation queues
- High rate limits
- SOC2 & ISO27001 reports, HIPAA-ready region
- Prioritized in-app support
Enterprise
- Everything in Pro + Teams
- 100k units / month included, additional: $8/100k units. Lower with volume (pricing calculator)
- Audit Logs
- SCIM API
- Custom rate limits
- Uptime SLA
- Support SLA
- Named lead support engineer
Braintrust vs Langfuse FAQ
- Which one is cheaper?
- Langfuse is the cheaper option, starting at $29/mo vs $249/mo for Braintrust.
- Can I use either one for free?
- Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
- How do they charge?
- Both use a hybrid model, so the comparison is straightforward — it comes down to features and limits at each price point.
- Which one is a better deal?
- Depends on what you need. Braintrust: At $249/mo for Pro, Braintrust sits mid-to-premium in the LLM observability/eval space — not a rock-bottom self-serve tool, but not locked behind a full sales-only paywall either. They're clearly courting funded startups (hence the free-months discount) who need serious eval infrastructure but aren't ready for enterprise contracts yet. Langfuse: Langfuse plays the developer-friendly value card in the LLM observability space, with a generous free tier, a cheap $29 entry point, and a self-host escape hatch that undercuts closed-source rivals on trust and cost. Startup, EDU, and OSS discounts show they're courting the builder community first and treating enterprise as the follow-on revenue.
Still deciding? See the best Braintrust alternatives or the best Langfuse alternatives, ranked with verified pricing.
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