LangSmith
AI Agent & LLM Observability Platform
VS
Eclipse Theia
The next-generation platform for IDEs and tools
Detailed comparison
Criteria
LangSmith
Eclipse Theia
Pricing
Freemium
Free
Plans & pricing
Developer: Free, Team: $39/mo, Enterprise: Custom
—
Free trial
No
—
Audience
b2b
b2b
Platforms
Web
—
API
Yes
—
Open Source
Proprietary
—
Integrations
Pagerduty
—
Categories
Data Science, Dev Tools
Coding, Dev Tools
Popularity
Very High
High
Description
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
An open-source extensible platform to build multi-language Cloud & Desktop IDEs with modern web technologies. It provides a flexible architecture for ...
Pricing
LangSmith
Freemium
Eclipse Theia
Free
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Eclipse Theia
—
Free trial
LangSmith
No
Eclipse Theia
—
Audience
LangSmith
b2b
Eclipse Theia
b2b
Platforms
LangSmith
Web
Eclipse Theia
—
API
LangSmith
Yes
Eclipse Theia
—
Open Source
LangSmith
Proprietary
Eclipse Theia
—
Integrations
LangSmith
Pagerduty
Eclipse Theia
—
Categories
LangSmith
Data Science, Dev Tools
Eclipse Theia
Coding, Dev Tools
Popularity
LangSmith
Very High
Eclipse Theia
High
Description
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...
Eclipse Theia
An open-source extensible platform to build multi-language Cloud & Desktop IDEs with modern web technologies. It provides a flexible architecture for ...
Features
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
Eclipse Theia
Cloud & Desktop support
VS Code Extension compatibility
Highly modular architecture
Multi-language support via Language Server Protocol
Integrated terminal and debugger
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Eclipse Theia
Other comparisons
FAQ: LangSmith vs Eclipse Theia
LangSmith: AI Agent & LLM Observability Platform. Eclipse Theia: The next-generation platform for IDEs and tools. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Eclipse Theia is free.
The best choice between LangSmith and Eclipse Theia 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.
LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts. Eclipse Theia offers: Cloud & Desktop support, VS Code Extension compatibility, Highly modular architecture, Multi-language support via Language Server Protocol.
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.