Langfuse vs Meilisearch
Open-source LLM engineering platform — observability, prompts, evals
vs. Open-source fast search engine — Rust-based, built-in typo tolerance
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
Meilisearch
Self-Hosted (OSS)
MIT license. Single Rust binary. Run anywhere.
$0 base (usage-based)
Cloud — Resource-Based
$23/mo. Pay by CPU/RAM/storage. For high-traffic + vector workloads.
$23/mo
Cloud — Usage-Based
$30/mo. Pre-set search + document limits. 14-day trial. For MVPs/mid-scale.
$30/mo
Cloud — Enterprise
Custom. Self-hosting option + premier support + SLA + compliance.
Custom
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs oss on Meilisearch.
| Metric | Langfuse | Meilisearch |
|---|---|---|
| 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.
Meilisearch · 15 features
- AI-Powered Search (experimental) — Semantic search, embedders.
- API Keys — Scoped keys with action + index + expiration.
- Custom Ranking Rules — Order ranking rules per index.
- Dumps & Snapshots — Full-DB export + snapshot backups.
- Faceted Search — Dynamic facets with counts.
- Federated Search — Multi-index search in one query with normalization.
- Filters — Filter by boolean / range / string conditions.
- Geo Search — Radius + bounding box geo queries.
- instant-meilisearch — Adapter to use Algolia InstantSearch UI libs with Meilisearch.
- Search — Full-text search with typo + prefix handling.
- Sortable Fields — Sort results by any attribute.
- Stop Words — Ignored common words.
- Synonyms — Configure synonym groups per index.
- Tenant Tokens — Short-lived multi-tenant auth tokens.
- Vector / Hybrid Search — Vector search with keyword hybrid mode.
Developer interfaces
| Kind | Langfuse | Meilisearch |
|---|---|---|
| CLI | — | meilisearch CLI |
| SDK | langfuse-js, langfuse-python | instant-meilisearch (Algolia UI adapter), meilisearch-go, meilisearch-js, meilisearch-php, meilisearch-python, meilisearch-ruby, meilisearch-rust, meilisearch-swift |
| REST | Langfuse REST API | Meilisearch REST API |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | — |
Staxly is an independent catalog of developer platforms. Outbound links to Langfuse and Meilisearch are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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