These tools integrates with
LangSmithvsPydanticAI
LLM tracing, evaluation, and dataset management versus Type-safe Python agent framework by Pydantic team
Compare interactively in Explore →Choose LangSmith when…
- •You're already in the LangChain ecosystem
- •You want end-to-end tracing for LangChain apps
- •Dataset management and evals are part of your workflow
Choose PydanticAI when…
- •You want type-safe, structured LLM outputs in Python
- •Pydantic is already central to your Python stack
- •You need reliable schema validation on LLM responses
Side-by-side comparison
Field
LangSmith
PydanticAI
Category
LLM Infrastructure
Agent Frameworks
Type
Commercial
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Plus: $39/mo
—
GitHub Stars
—
⭐ 7,000
Health
—
●80 — Active
LangSmith
LangChain's observability platform. Trace every LLM call, run evals on datasets, and manage prompts in production.
Only LangSmith (9)
LangGraphLangChainCursorPydanticAILangfuseBraintrustHeliconeWeights & BiasesAgentOps
Only PydanticAI (4)
OpenAI APIAnthropic APILangSmithLogfire
Explore the full AI landscape
See how LangSmith and PydanticAI fit into the bigger picture — 207 tools, 452 relationships, all mapped.