Langfuse vs Figma
Open-source LLM engineering platform — observability, prompts, evals
vs. Collaborative interface design — the dominant tool for UI, UX + prototyping
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
Figma
Starter
$0. 3 Figma files, 3 FigJam files. Unlimited collaborators. Basic features.
$0 base (usage-based)
Professional
$15/editor/mo annual ($20/mo). Unlimited files, version history, team libraries.
$15/mo
Dev Mode Seats
$25/dev/mo. Read-only access for engineers (alternative to full editor seats).
$25/mo
Organization
$45/editor/mo annual ($55/mo). Design systems, branch + merge, SSO.
$45/mo
Enterprise
$75/editor/mo. SAML, audit log, security reviews, dedicated CSM, HIPAA.
$75/mo
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on Figma.
| Metric | Langfuse | Figma |
|---|---|---|
| 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.
Figma · 19 features
- Auto Layout — Flexbox-like layout constraints.
- Branch + Merge — Git-like workflow for designs.
- Comments + Reactions — In-file discussion.
- Components — Reusable + variants + properties.
- Design — Vector + layout tools.
- Dev Mode — Handoff view with code specs.
- FigJam — Whiteboard / brainstorming.
- Figma AI — Generative design + Make Designs.
- Figma MCP — AI agent access via Model Context Protocol.
- Figma Slides — Presentations.
- Inspect + Code Tokens — Extract CSS/iOS/Android.
- Plugin Ecosystem — 10,000+ community plugins.
- Prototyping — Interactive flows + transitions.
- REST API — Read file contents + export.
- SSO — SAML/OIDC (Org+).
- Team Libraries — Shared component libraries.
- Variables + Modes — Design tokens with dark/light mode switching.
- Webhooks — File / version events.
- Widgets — Custom interactive widgets in files.
Developer interfaces
| Kind | Langfuse | Figma |
|---|---|---|
| SDK | langfuse-js, langfuse-python | Plugins API, Widgets API |
| REST | Langfuse REST API | Figma REST API |
| MCP | Langfuse MCP Server | Figma MCP (Dev Mode) |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | Figma Desktop, Figma Web, Figma Webhooks |
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