Langflow
Low-code AI builder for agentic and RAG applications
VS
LangSmith
AI Agent & LLM Observability Platform
Detailed comparison
Criteria
Langflow
LangSmith
Pricing
Freemium
Freemium
Plans & pricing
Free: Free
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2b
Platforms
Web
Web
API
Yes
Yes
Open Source
Open Source
Proprietary
Integrations
—
Pagerduty
Categories
Dev & Tech, information technology & services, Workflow automation
Dev & Tech, information technology & services, Apps
Popularity
Very High
Very High
Description
Langflow is a low-code AI builder for agentic and retrieval-augmented generation (RAG) apps. It allows users to code in Python and integrate with any ...
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
Langflow
Freemium
LangSmith
Freemium
Plans & pricing
Langflow
Free: Free
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
Langflow
No
LangSmith
No
Audience
Langflow
b2b
LangSmith
b2b
Platforms
Langflow
Web
LangSmith
Web
API
Langflow
Yes
LangSmith
Yes
Open Source
Langflow
Open Source
LangSmith
Proprietary
Integrations
Langflow
—
LangSmith
Pagerduty
Categories
Langflow
Dev & Tech, information technology & services, Workflow automation
LangSmith
Dev & Tech, information technology & services, Apps
Popularity
Langflow
Very High
LangSmith
Very High
Description
Langflow
Langflow is a low-code AI builder for agentic and retrieval-augmented generation (RAG) apps. It allows users to code in Python and integrate with any ...
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
Langflow
Low-code AI builder
Supports agentic and RAG applications
Integrates with any LLM and vector database
Python-based development
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
Langflow
- Low-code builder for agentic & RAG apps
- Integrates any LLM & vector database
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Other comparisons
FAQ: Langflow vs LangSmith
Langflow: Low-code AI builder for agentic and RAG applications. LangSmith: AI Agent & LLM Observability Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Langflow is freemium and LangSmith is freemium.
The best choice between Langflow 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.
Langflow offers: Low-code AI builder, Supports agentic and RAG applications, Integrates with any LLM and vector database, Python-based development. 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.