# LangGraph vs Pydantic AI (slim)

> Pydantic AI has a score of 80 (A) against LangGraph's 70.6 (BB). Both do agent frameworks. The largest gap is security & auth, 20 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/langgraph-vs-pydantic-ai.md (~1,250 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/langgraph-vs-pydantic-ai.json · canonical https://www.anchorterminal.com/compare/langgraph-vs-pydantic-ai
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Pydantic AI has a score of 80 (A) against LangGraph's 70.6 (BB). Both do agent frameworks. The largest gap is security & auth, 20 points.

- LangGraph: BB 70.6, rank #95 of 452 · https://www.anchorterminal.com/tools/langgraph.min.md
- Pydantic AI: A 80, rank #7 of 452 · https://www.anchorterminal.com/tools/pydantic-ai.min.md
- Pick LangGraph for nothing in particular. Pick Pydantic AI for reliability (+8), schema & documentation (+6), agent ergonomics (+15), security & auth (+20).

| Category | LangGraph | Pydantic AI |
| --- | --- | --- |
| Reliability (16%) | 75 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 95 |
| Agent ergonomics (13%) | 70 | 85 |
| Security & auth (14%) | 60 | 80 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 90 | 90 |
| Transparency & trust (7%) | 79 | 77 |