LangSmith vs Mintlify
LLM observability, testing & evaluation — by LangChain
vs. Beautiful docs + AI search — used by Anthropic, Cursor, Perplexity
Pricing tiers
LangSmith
Developer (Free)
Free forever. 5,000 traces/month. 14-day retention. 1 seat. Basic evaluations.
Free
Plus
$39/seat/month. 10k base traces included ($2.50 per 1k overage). Full evaluations, custom dashboards, email support.
$39/mo
Enterprise
Custom. Self-host option, SSO, custom retention, dedicated support.
Custom
Mintlify
Hobby
$0. 1 editor. Unlimited pages. Mintlify subdomain. Community support.
Free
Pro
$150/mo. Custom domain, analytics, versioning, 10 editors. Commercial use.
$150/mo
Growth
$550/mo. API playground, OpenAPI, 25 editors, advanced analytics, SSO.
$550/mo
Enterprise
Custom. Dedicated support, HIPAA, SAML, custom integrations, large teams.
Custom
Free-tier quotas head-to-head
Comparing developer on LangSmith vs hobby on Mintlify.
| Metric | LangSmith | Mintlify |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
LangSmith · 14 features
- Alerts — Threshold alerts on latency, cost, eval metrics.
- Annotation Queues — Human-review workflows for trace quality rating.
- Custom Dashboards — Aggregate metrics dashboards per project/tag.
- Datasets — Collect examples → use as eval sets or training data.
- Evaluations — LLM-as-judge, embedding similarity, custom Python evaluators, offline batch eval…
- LangChain Integration — Auto-trace any LangChain/LangGraph run with env var.
- LangGraph Integration — First-class trace + eval for LangGraph agents.
- LLM Tracing — Automatic trace every LLM call + tool call + chain step.
- OpenTelemetry Export — Export traces as OTLP to Datadog/Honeycomb/etc.
- Playground — Test prompts + models inline before deploying.
- Prompt Canvas — Visual prompt editor with live test + eval.
- Prompt Hub — Public + private prompt library with versioning.
- Self-Hosted (Enterprise) — Docker + k8s deployment in your infra.
- Threads + Sessions — Group traces into conversational sessions.
Mintlify · 15 features
- AI Chat — User-facing AI assistant trained on your docs.
- AI Search — Semantic search across docs.
- Analytics — Page views, search queries, CTR.
- API Playground — Try API endpoints from docs (OpenAPI).
- Custom Domain — docs.yourco.com.
- Custom Theming — Logo, colors, fonts, branding.
- Git Sync — Build on push to GitHub/GitLab.
- i18n — Multi-language docs.
- MDX — Markdown + React components.
- Multi-version Docs — Support /v1, /v2, /v3 side-by-side.
- OpenAPI Generation — Auto-generate docs from spec.
- Pre-built Components — Cards, Callouts, Tabs, CodeGroups, Accordions.
- SEO Optimized — SSR + structured data.
- SSO — SAML + OIDC (Growth+).
- Syntax Highlighting — Shiki-based, 100+ languages.
Developer interfaces
| Kind | LangSmith | Mintlify |
|---|---|---|
| CLI | LangSmith CLI | mintlify CLI |
| SDK | langsmith-js, langsmith-python | — |
| REST | LangSmith REST API | — |
| MCP | LangSmith MCP | — |
| OTHER | LangSmith Dashboard | AI Chat Widget, Analytics Dashboard, API Playground, MDX + mint.json, Mintlify Dashboard |
Staxly is an independent catalog of developer platforms. Some links to LangSmith and Mintlify 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.
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