LangSmith
LLM observability platform for tracing, debugging, and evaluating AI apps
6 Best Alternatives to LangSmith
LangSmith's parent framework for building the AI chains being observed
The most widely used framework for building LLM-powered applications and agents
Alternative agent framework with its own tracing integrations
Data framework for connecting LLMs to your private and enterprise data sources
ML experiment tracking that extends to LLM evaluation workflows
MLOps platform for tracking experiments, comparing models, and monitoring AI in production
Visual LangChain workflow builder with built-in logging
Visual framework for building multi-agent RAG and LLM applications
Open-source LLM app builder with run tracing for chatflows
Open-source visual builder for LLM flows, chatbots, and AI agents
Model inference platform with run history and version tracking
Run open-source AI models via API without managing infrastructure
Quick Comparison
| Tool | Rating | Pricing | Category | Why Consider It |
|---|---|---|---|---|
| LangChain | ★★★★☆ | Open Source | Code Assistants | LangSmith's parent framework for building the AI chains being observed |
| LlamaIndex | ★★★★☆ | Open Source | Code Assistants | Alternative agent framework with its own tracing integrations |
| Weights and Biases | ★★★★★ | Freemium | Code Assistants | ML experiment tracking that extends to LLM evaluation workflows |
| Langflow | ★★★★☆ | Freemium | AI Agents & Automation | Visual LangChain workflow builder with built-in logging |
| Flowise | ★★★★☆ | Freemium | AI Agents & Automation | Open-source LLM app builder with run tracing for chatflows |
| Replicate | ★★★★☆ | Usage-Based | Image Generation | Model inference platform with run history and version tracking |