LangSmith
AI Agent & LLM Observability Platform
VS
PeriFlow
The high-performance engine for generative AI serving
Detailed comparison
Criteria
LangSmith
PeriFlow
Pricing
Freemium
Paid
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
Dev & Tech, information technology & services, Apps
Dev & Tech, information technology & services, LLM training
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...
PeriFlow, developed by FriendliAI, is an advanced inference engine designed to optimize the deployment and serving of Large Language Models (LLMs), si...
Pricing
LangSmith
Freemium
PeriFlow
Paid
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
PeriFlow
—
Free trial
LangSmith
No
PeriFlow
—
Audience
LangSmith
b2b
PeriFlow
b2b
Platforms
LangSmith
Web
PeriFlow
—
API
LangSmith
Yes
PeriFlow
—
Open Source
LangSmith
Proprietary
PeriFlow
—
Integrations
LangSmith
Pagerduty
PeriFlow
—
Categories
LangSmith
Dev & Tech, information technology & services, Apps
PeriFlow
Dev & Tech, information technology & services, LLM training
Popularity
LangSmith
Very High
PeriFlow
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...
PeriFlow
PeriFlow, developed by FriendliAI, is an advanced inference engine designed to optimize the deployment and serving of Large Language Models (LLMs), si...
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
PeriFlow
Continuous batching for high throughput
Iteration-level scheduling
Multi-GPU and multi-node execution
Support for popular open-source models like Llama 3
Low-latency token generation
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
PeriFlow
Other comparisons
FAQ: LangSmith vs PeriFlow
LangSmith: AI Agent & LLM Observability Platform. PeriFlow: The high-performance engine for generative AI serving. Both tools take different approaches to address similar needs.
LangSmith offers a freemium plan, while PeriFlow is a paid tool.
The best choice between LangSmith and PeriFlow 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. PeriFlow offers: Continuous batching for high throughput, Iteration-level scheduling, Multi-GPU and multi-node execution, Support for popular open-source models like Llama 3.
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.