Labelbox
The data factory for AI teams
VS
LangSmith
AI Agent & LLM Observability Platform
Detailed comparison
Criteria
Labelbox
LangSmith
Pricing
Freemium
Freemium
Plans & pricing
Free for Education: Free, Standard: Custom, Enterprise: Custom
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2b
Platforms
Web
Web
API
Yes
Yes
Open Source
Proprietary
Proprietary
Integrations
—
Pagerduty
Categories
Dev & Tech, information technology & services, Apps
Dev & Tech, information technology & services, Apps
Popularity
Very High
Very High
Description
Labelbox is a data-centric AI platform that enables teams to manage data labeling, curation, and model evaluation within a unified collaborative envir...
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Pricing
Labelbox
Freemium
LangSmith
Freemium
Plans & pricing
Labelbox
Free for Education: Free, Standard: Custom, Enterprise: Custom
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
Labelbox
No
LangSmith
No
Audience
Labelbox
b2b
LangSmith
b2b
Platforms
Labelbox
Web
LangSmith
Web
API
Labelbox
Yes
LangSmith
Yes
Open Source
Labelbox
Proprietary
LangSmith
Proprietary
Integrations
Labelbox
—
LangSmith
Pagerduty
Categories
Labelbox
Dev & Tech, information technology & services, Apps
LangSmith
Dev & Tech, information technology & services, Apps
Popularity
Labelbox
Very High
LangSmith
Very High
Description
Labelbox
Labelbox is a data-centric AI platform that enables teams to manage data labeling, curation, and model evaluation within a unified collaborative envir...
LangSmith
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Features
Labelbox
Data Labeling
Data Curation
Model Evaluation
Support for Computer Vision, NLP, and Multilingual Projects
Access to Skilled AI Trainers (Aligner services)
Unified Collaborative Environment
LangSmith
Cost tracking
Online LLM-as-judge and code evals
Tool and agent trajectory monitoring
Webhook and Pagerduty alerts
Message threading for multi-turn chat interactions
Templates for error analysis
Key differentiators
Labelbox
- Data-centric AI platform
- Integrated labeling & model evaluation
- Supports RLHF & custom evaluations
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Other comparisons
FAQ: Labelbox vs LangSmith
Labelbox: The data factory for AI teams. LangSmith: AI Agent & LLM Observability Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Labelbox is freemium and LangSmith is freemium.
The best choice between Labelbox and LangSmith depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Both are primarily designed for individuals. The choice depends on which specific features you need.
Labelbox offers: Data Labeling, Data Curation, Model Evaluation, Support for Computer Vision, NLP, and Multilingual Projects. LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts.
Based on our data, LangSmith currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.