Staxly

LangSmith vs Turso

LLM observability, testing & evaluation — by LangChain
vs. Edge SQLite — libSQL at the speed of light

LangSmith websiteTurso website

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
LangSmith website

Turso

Free
100 DBs, 5 GB storage, 500M row reads/mo, 10M row writes/mo. No credit card.
Free
Developer
Unlimited DBs, 9 GB storage, 2.5B reads, 25M writes.
$5/mo
Scaler
24 GB storage, 100B reads, 100M writes. Teams + DPA support. Price is annual-billed.
$25/mo
Pro
50 GB storage, 250B reads, 250M writes. Teams, DPA, SSO, BYOK, HIPAA, SOC2, priority support. Annual billed.
$417/mo
Enterprise
White-glove support + unlimited usage + dedicated infra.
Custom
Turso website

Free-tier quotas head-to-head

Comparing developer on LangSmith vs free on Turso.

MetricLangSmithTurso
databases100 DBs
row reads month500000000 reads/month
row writes month10000000 writes/month
storage gb5 GB

Features

LangSmith · 14 features

  • AlertsThreshold alerts on latency, cost, eval metrics.
  • Annotation QueuesHuman-review workflows for trace quality rating.
  • Custom DashboardsAggregate metrics dashboards per project/tag.
  • DatasetsCollect examples → use as eval sets or training data.
  • EvaluationsLLM-as-judge, embedding similarity, custom Python evaluators, offline batch eval
  • LangChain IntegrationAuto-trace any LangChain/LangGraph run with env var.
  • LangGraph IntegrationFirst-class trace + eval for LangGraph agents.
  • LLM TracingAutomatic trace every LLM call + tool call + chain step.
  • OpenTelemetry ExportExport traces as OTLP to Datadog/Honeycomb/etc.
  • PlaygroundTest prompts + models inline before deploying.
  • Prompt CanvasVisual prompt editor with live test + eval.
  • Prompt HubPublic + private prompt library with versioning.
  • Self-Hosted (Enterprise)Docker + k8s deployment in your infra.
  • Threads + SessionsGroup traces into conversational sessions.

Turso · 11 features

  • BranchingCreate DB branches from a primary for staging/test envs.
  • BYOK EncryptionBring your own encryption key (Pro+).
  • Edge RoutingRequests route automatically to the nearest replica group.
  • Embedded ReplicasClient-side local SQLite file that syncs from the primary — reads are <1ms local
  • libSQLTurso's open-source SQLite fork with HTTP, WebSocket, and multi-writer support.
  • libSQL Server (sqld)Self-hostable server component. Runs libSQL as a service.
  • Multi-DatabaseCreate thousands of DBs cheaply — perfect for per-tenant / per-customer isolatio
  • Point-in-Time RestoreRollback DB to any moment within backup window.
  • Scheduled BackupsAutomated point-in-time backups.
  • SQLite CompatibilityDrop-in SQLite — same SQL dialect, same file format.
  • Teams & RBACOrg-level access control for Scaler+ tiers.

Developer interfaces

KindLangSmithTurso
CLILangSmith CLITurso CLI
SDKlangsmith-js, langsmith-pythongo-libsql, @libsql/client, libsql-experimental (Python), libsql-rs, libsql-swift
RESTLangSmith REST APIlibSQL HTTP, Platform API
MCPLangSmith MCPTurso MCP
OTHERLangSmith DashboardlibSQL WebSocket, SQLite wire protocol
Staxly is an independent catalog of developer platforms. Outbound links to LangSmith and Turso are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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