LangSmith vs Hasura
LLM observability, testing & evaluation — by LangChain
vs. Instant GraphQL + REST on your data sources — with permissions
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
Hasura
OSS (Community)
Free forever (Apache-2.0). Self-host GraphQL Engine v2.
$0 base (usage-based)
Cloud Free
$0. 1 project. 60 req/min. Community support.
Free
Professional
$99/mo (starts). Usage-based compute + data pass-through. Production SLAs.
$99/mo
Advanced
Custom. Multi-region, dedicated, observability, SSO.
Custom
Enterprise
Custom. On-prem / air-gap / advanced security.
Custom
Free-tier quotas head-to-head
Comparing developer on LangSmith vs free on Hasura.
| Metric | LangSmith | Hasura |
|---|---|---|
| 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.
Hasura · 14 features
- Actions — Custom resolvers via HTTP.
- Data Connector Hub — Build connectors to any source.
- Event Triggers — DB changes → webhook.
- GraphQL API — Auto GraphQL over relational + NoSQL.
- Hasura DDN (v3) — Multi-source supergraph with OpenDD.
- JWT Auth — Pluggable JWT verification.
- Metadata Migrations — Git-versioned Hasura config.
- Permissions — Row + column + session-based.
- Query Caching — Edge caching with cache-control directive.
- Remote Schemas — Merge external GraphQL into supergraph.
- REST Endpoints — Turn any GraphQL op into REST.
- Scheduled Triggers — Cron + one-off webhook triggers.
- Subscriptions — Live queries via WS.
- Webhook Auth — Custom auth via webhook.
Developer interfaces
| Kind | LangSmith | Hasura |
|---|---|---|
| CLI | LangSmith CLI | ddn CLI (v3), hasura CLI |
| SDK | langsmith-js, langsmith-python | — |
| REST | LangSmith REST API | Hasura REST Endpoints, Metadata API |
| GRAPHQL | — | Hasura GraphQL Engine |
| MCP | LangSmith MCP | — |
| OTHER | LangSmith Dashboard | Data Connectors, Hasura Console |
Staxly is an independent catalog of developer platforms. Outbound links to LangSmith and Hasura are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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