Langfuse vs Lovable
Open-source LLM engineering platform — observability, prompts, evals
vs. AI app builder with shared team workspace — unlimited users per plan
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
Lovable
Free
Limited features baseline. Try out and build small demos.
Free
Pro
$25/month (shared across unlimited users). 100 credits/mo + 5 daily (up to 150/mo). Custom domains, remove Lovable badge, user roles.
$25/mo
Business
$50/month (shared). Everything in Pro + Internal publish, SSO, Team workspace, personal projects, design templates, security center.
$50/mo
Enterprise
Custom (platform fee by company size). Covers all employees. Volume credits, dedicated support, onboarding, SCIM, audit logs.
Custom
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on Lovable.
| Metric | Langfuse | Lovable |
|---|---|---|
| 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.
Lovable · 16 features
- Connect External APIs — Chat: "connect OpenAI API" → done.
- Custom Domains — Publish at yourbrand.com.
- Design Templates — Pre-made design systems (Business tier).
- GitHub 2-way Sync — Commit from Lovable or edit in repo — reflects both ways.
- Image/Sketch to UI — Upload screenshot → get matching UI.
- Internal Publish — Deploy internally only (Business tier).
- Live Preview — See the app live while iterating.
- Prompt-to-App — Natural language → running React app.
- Remove Lovable Badge — White-label output — no Lovable branding.
- SCIM Provisioning (Ent) — Directory sync.
- Security Center — Audit + permissions console (Business+).
- Stripe Integration — Built-in Stripe payments setup.
- Supabase Native — First-class Supabase auth + DB integration.
- Team Workspace — Shared projects + roles.
- User Roles — Role-based access control.
- Visual Edit — Click element → describe change.
Developer interfaces
| Kind | Langfuse | Lovable |
|---|---|---|
| SDK | langfuse-js, langfuse-python | — |
| REST | Langfuse REST API | Lovable API (preview) |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | GitHub 2-way sync, Lovable Web App, Supabase Native |
Staxly is an independent catalog of developer platforms. Outbound links to Langfuse and Lovable are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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