LangSmith
AI Agent & LLM Observability Platform
VS
Pezzo
The Open-Source LLMOps Platform
Popularity
LangSmith9,349
Pezzo2,700
Pricing
FreemiumLangSmith
FreemiumPezzo
Features
6
LangSmith
vs
6
Pezzo
Our verdict
LangSmith is significantly more popular in terms of media coverage and engagement.
LangSmith offers an API for integration into your workflows.
Detailed comparison
Criteria
LangSmith
Pezzo
Pricing
Freemium
Freemium
Plans & pricing
Free: Free, Developer: Free, Team: $39/mo, Enterprise: Custom
—
Free trial
No
—
Audience
b2b
b2b
Platforms
Web, Api, Cli
—
API
Yes
—
Open Source
Proprietary
—
Integrations
Amazon-bedrock, Anthropic, Google-adk, Openai-sdk, Vercel-ai-sdk, Autogen, Claude-agent-sdk, Claude-code, Crewai, Deep-agents, Instructor, Langchain, Langgraph, Openai-agents-sdk, Semantic-kernel, Aws, Aws-cloudwatch, Azure, Gcp, Kubernetes
—
Categories
Data Science, Dev Tools
Task automation, information technology & services, Productivity
Popularity
Very High
Moderate
Description
LangSmith is a comprehensive AI agent and LLM observability platform. It provides tracing and real-time monitoring to help developers debug agents, identify failures quickly, and track critical metrics like costs and latency.
Pezzo is an open-source LLMOps platform designed to streamline AI development. It provides tools for prompt management, observability, and deployment, allowing teams to collaborate on AI prompts and monitor their performance in real-time.
Pricing
LangSmith
Freemium
Pezzo
Freemium
Plans & pricing
LangSmith
Free: Free, Developer: Free, Team: $39/mo, Enterprise: Custom
Pezzo
—
Free trial
LangSmith
No
Pezzo
—
Audience
LangSmith
b2b
Pezzo
b2b
Platforms
LangSmith
Web, Api, Cli
Pezzo
—
API
LangSmith
Yes
Pezzo
—
Open Source
LangSmith
Proprietary
Pezzo
—
Integrations
LangSmith
Amazon-bedrock, Anthropic, Google-adk, Openai-sdk, Vercel-ai-sdk, Autogen, Claude-agent-sdk, Claude-code, Crewai, Deep-agents, Instructor, Langchain, Langgraph, Openai-agents-sdk, Semantic-kernel, Aws, Aws-cloudwatch, Azure, Gcp, Kubernetes
Pezzo
—
Categories
LangSmith
Data Science, Dev Tools
Pezzo
Task automation, information technology & services, Productivity
Popularity
LangSmith
Very High
Pezzo
Moderate
Description
LangSmith
LangSmith is a comprehensive AI agent and LLM observability platform. It provides tracing and real-time monitoring to help developers debug agents, identify failures quickly, and track critical metrics like costs and latency.
Pezzo
Pezzo is an open-source LLMOps platform designed to streamline AI development. It provides tools for prompt management, observability, and deployment, allowing teams to collaborate on AI prompts and monitor their performance in real-time.
Features
LangSmith
SDKs for Python, TypeScript, Go, and Java
Message threading for multi-turn chat interactions
Cost tracking
Online LLM-as-judge and code evals
Tool and agent trajectory monitoring
Webhook and Pagerduty alerts
Pezzo
Centralized Prompt Management
Observability & Tracing
Prompt Versioning
Cost & Token Tracking
A/B Testing
Native TypeScript Client
Key differentiators
LangSmith
- End-to-end LLM observability
- Robust debugging and evaluation
- Framework-agnostic integration
- Production monitoring and scalability
- Unified platform for agent engineering
Pezzo
Other comparisons
FAQ: LangSmith vs Pezzo
LangSmith: AI Agent & LLM Observability Platform. Pezzo: The Open-Source LLMOps Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Pezzo is freemium.
The best choice between LangSmith and Pezzo 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: SDKs for Python, TypeScript, Go, and Java, Message threading for multi-turn chat interactions, Cost tracking, Online LLM-as-judge and code evals. Pezzo offers: Centralized Prompt Management, Observability & Tracing, Prompt Versioning, Cost & Token Tracking.
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.
Neither tool currently offers a free trial.
LangSmith offers 20 integrations (amazon-bedrock, anthropic, google-adk, openai-sdk, vercel-ai-sdk...) compared to 0 for Pezzo.