LangSmith
AI Agent & LLM Observability Platform
VS
Replicate
Run open-source machine learning models with a cloud API
Detailed comparison
Criteria
LangSmith
Replicate
Pricing
Freemium
Freemium
Plans & pricing
Developer: Free, Team: $39/mo, Enterprise: Custom
Free: Free, Pay-as-you-go: Custom, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2b
Platforms
Web
Web, Api
API
Yes
Yes
Open Source
Proprietary
Proprietary
Integrations
Pagerduty
—
Categories
Dev & Tech, information technology & services, Apps
Content Creation, information technology & services, Image
Popularity
Very High
Very 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...
Replicate provides a cloud API for running open-source and proprietary machine learning models. Developers can easily integrate a vast library of mode...
Pricing
LangSmith
Freemium
Replicate
Freemium
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Replicate
Free: Free, Pay-as-you-go: Custom, Enterprise: Custom
Free trial
LangSmith
No
Replicate
No
Audience
LangSmith
b2b
Replicate
b2b
Platforms
LangSmith
Web
Replicate
Web, Api
API
LangSmith
Yes
Replicate
Yes
Open Source
LangSmith
Proprietary
Replicate
Proprietary
Integrations
LangSmith
Pagerduty
Replicate
—
Categories
LangSmith
Dev & Tech, information technology & services, Apps
Replicate
Content Creation, information technology & services, Image
Popularity
LangSmith
Very High
Replicate
Very 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...
Replicate
Replicate provides a cloud API for running open-source and proprietary machine learning models. Developers can easily integrate a vast library of mode...
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
Replicate
Cloud API for open-source and proprietary models
Vast library of models
Scalable on demand deployment
Billing by run time
Free tier available
Model comparison tools
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Replicate
- Cloud API for open-source & proprietary ML models
- Vast library of pre-trained ML models
- Scalable, pay-per-run model deployment
Other comparisons
FAQ: LangSmith vs Replicate
LangSmith: AI Agent & LLM Observability Platform. Replicate: Run open-source machine learning models with a cloud API. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Replicate is freemium.
The best choice between LangSmith and Replicate 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. Replicate offers: Cloud API for open-source and proprietary models, Vast library of models, Scalable on demand deployment, Billing by run time.
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.