
AI Agent & LLM Observability Platform

A simple and powerful desktop client for your favorite AI models
LangSmith: AI Agent & LLM Observability Platform. Ragna: A simple and powerful desktop client for your favorite AI models. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Ragna is free.
The best choice between LangSmith and Ragna 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.
LangSmith is primarily designed for individuals, while Ragna is built for individuals.
LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts. Ragna offers: Multi-model support (OpenAI, Anthropic, etc.), Ollama integration for local models, Privacy-first architecture, Custom system prompts.
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.