Langfuse vs Trigger.dev
Open-source LLM engineering platform — observability, prompts, evals
vs. Open-source background jobs with no timeouts and full observability
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
Trigger.dev
Free
$0. 5K runs/mo. 1 concurrent run. 1 team member. 7-day log retention.
Free
Self-Host (OSS)
Free. Apache-2.0 license. Docker Compose + Postgres + Redis.
$0 base (usage-based)
Hobby
$10/mo. 50K runs/mo. 25 concurrent. Unlimited queue time.
$10/mo
Pro
$50/mo (starts at — usage scales). 250K runs/mo baseline. 100 concurrent. Priority.
$50/mo
Enterprise
Custom. HIPAA, SSO, dedicated clusters, on-prem.
Custom
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on Trigger.dev.
| Metric | Langfuse | Trigger.dev |
|---|---|---|
| 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.
Trigger.dev · 13 features
- Batch Trigger — Trigger many runs at once with limits.
- Environment Variables — Manage secrets in dashboard.
- Idempotency Keys — Prevent duplicate runs.
- Machine Sizing — Pick CPU/RAM per task.
- Queues + Concurrency — Named queues for controlled throughput.
- Realtime + React Hooks — Subscribe to run progress from client.
- Retries — Exponential + custom strategies.
- Schedules — Cron-triggered runs.
- Self-Hosting — Run locally or on your infra.
- Subtasks + triggerAndWait — Compose tasks by triggering children.
- Task Metadata — Attach arbitrary metadata to runs.
- Tasks — Define long-running TS tasks.
- wait.for / wait.until — Durable waits — minutes, hours, days.
Developer interfaces
| Kind | Langfuse | Trigger.dev |
|---|---|---|
| CLI | — | trigger.dev CLI |
| SDK | langfuse-js, langfuse-python | @trigger.dev/react-hooks, @trigger.dev/sdk |
| REST | Langfuse REST API | Trigger.dev REST API |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | Trigger.dev Dashboard, Trigger.dev Webhooks |
Staxly is an independent catalog of developer platforms. Outbound links to Langfuse and Trigger.dev are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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