Langfuse vs GitBook
Open-source LLM engineering platform — observability, prompts, evals
vs. Modern docs & knowledge bases — Notion-meets-Mintlify for teams
Pricing tiers
Langfuse
Hobby (Cloud Free)
Free. 50k units/month included. 30 days data access. 2 users. Community support.
Free
Self-Hosted (OSS)
MIT-licensed. Docker Compose or Kubernetes deployment. Unlimited.
$0 base (usage-based)
Core
$29/month. 100k units included ($8 per 100k overage). 90 days retention. Unlimited users. In-app support.
$29/mo
Pro
$199/month. 100k units included + same overage. 3 YEARS retention. Unlimited annotation queues. High rate limits.
$199/mo
Teams Add-on
+$300/month. Adds Enterprise SSO + fine-grained RBAC + dedicated Slack support to Pro.
$300/mo
Enterprise
$2,499/month. Everything + custom rate limits, uptime SLA, dedicated support engineer. Yearly options.
$2499/mo
GitBook
Free (Personal)
$0. Unlimited public docs, unlimited editors, AI Assistant (limited). For open-source or personal.
Free
Plus
$6.70/user/mo (annual) or $10/mo. Unlimited public + private spaces, custom domain.
$7/mo
Pro
$12.50/user/mo annual. SSO, advanced security, visitor auth, git sync auto-merge.
$13/mo
Enterprise
Custom. SAML, audit logs, dedicated support, security reviews.
Custom
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on GitBook.
| Metric | Langfuse | GitBook |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Langfuse · 16 features
- Annotation Queues — Human reviewers rate traces. Unlimited on Pro+.
- Dashboards — Aggregate metrics, cost, quality across projects.
- Datasets — Curate test sets from production traces. Run experiments.
- EU Cloud Region — GDPR-compliant hosting in EU.
- Evaluations — LLM-as-judge, manual scores, custom model-graded evaluators.
- LLM Cost Tracking — Automatic cost calculation per provider/model.
- OpenTelemetry Native — OTel SDK → Langfuse endpoint works out of box.
- Playground — Test prompts + models + variables live.
- Prompt Management — Version, tag, label prompts. Reference from code by label.
- Public API — Full REST API for ingest, query, prompt management.
- Python @observe decorator — One-line decorator to trace any function.
- Self-Hosting — Docker Compose + k8s Helm chart.
- Sessions — Group related traces (conversations, agent runs).
- Tracing — Capture every LLM call, tool call, nested span with inputs/outputs/cost.
- Users Tracking — Segment traces by user ID, track per-user cost.
- Webhooks — Subscribe to trace completion events.
GitBook · 14 features
- AI Assistant — End-user chat + authoring help.
- Block Editor — Notion-style visual editor.
- Change Requests — PR-like review for docs edits.
- Custom Domain — docs.yourco.com.
- Full-text Search — Scoped + global.
- Git Sync — Two-way GitHub/GitLab sync.
- Integrations Gallery — Built-in integrations panel.
- Markdown Support — Import/export MD.
- OpenAPI Blocks — Embed interactive API reference.
- Page Analytics — Views, search queries, feedback.
- PDF Export — Download docs as PDF.
- SSO — SAML + OIDC.
- Versioning — Compare versions, revert.
- Visitor Authentication — Gate private docs (Pro+).
Developer interfaces
| Kind | Langfuse | GitBook |
|---|---|---|
| CLI | — | gitbook CLI (legacy) |
| SDK | langfuse-js, langfuse-python | @gitbook/api (TS) |
| REST | Langfuse REST API | GitBook HTTP API |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | GitBook Editor, GitBook Webhooks, GitHub/GitLab Sync |
Staxly is an independent catalog of developer platforms. Some links to Langfuse and GitBook may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
Want this comparison in your AI agent's context? Install the free Staxly MCP server.