Alternatives
Pydantic AI alternatives: 9 documented options compared (October 2026)
The main documented alternatives to Pydantic AI are Claude Agent SDK, CrewAI, Google ADK, LangGraph, Mastra, Microsoft Agent Framework, OpenAI Agents SDK, smolagents, and Strands Agents.
Last verified 2026-10-30
Earlier records in this comparison were checked from 2026-10-23 through 2026-10-30.
Comparison
A cell reads not documented when the directory has no sourced value. The first row is this listing. The other rows are alphabetical by name.
| Listing | Status | Open source | Tags |
|---|---|---|---|
| Pydantic AIThis listing | Live | Yes | python, orchestration, guardrails |
| Claude Agent SDK | Live | No | orchestration, tools, permissions |
| CrewAI | Live | Yes | multi-agent, orchestration, python |
| Google ADK | Live | Yes | orchestration, multi-agent, tools |
| LangGraph | Live | Yes | orchestration, approvals, state |
| Mastra | Live | Yes | typescript, orchestration, approvals |
| Microsoft Agent Framework | Live | Yes | multi-agent, orchestration, approvals |
| OpenAI Agents SDK | Live | Yes | orchestration, tools, approvals |
| smolagents | Live | Yes | python, tools, code-agents |
| Strands Agents | Live | Yes | orchestration, guardrails, tools |
How to choose
Pydantic AI is compared with the other listings in Frameworks and runtimes.
Tags on Pydantic AI are python, orchestration, guardrails.
Other tags differ across the table.
Status is Live for every listing in this comparison.
Open source is yes for CrewAI, Google ADK, LangGraph, Mastra, Microsoft Agent Framework, OpenAI Agents SDK, Pydantic AI, smolagents, and Strands Agents. Open source is no for Claude Agent SDK.
The table has 10 rows. The first row is Pydantic AI. The other 9 rows are alphabetical by name. This page does not score listings.
Listings
- Pydantic AIThis listing
- Claude Agent SDKAlternative
- CrewAIAlternative
- Google ADKAlternative
- LangGraphAlternative
- MastraAlternative
- Microsoft Agent FrameworkAlternative
- OpenAI Agents SDKAlternative
- smolagentsAlternative
- Strands AgentsAlternative
Comparisons
Questions
- What are the documented alternatives to Pydantic AI?
- The main documented alternatives to Pydantic AI are Claude Agent SDK, CrewAI, Google ADK, LangGraph, Mastra, Microsoft Agent Framework, OpenAI Agents SDK, smolagents, and Strands Agents.
- How were these alternatives chosen?
- They are the other listings in Frameworks and runtimes. A page is built only when that set has at least 3 other listings. Peers are alphabetical by name. The page does not score listings and does not read sponsor records.
- What does the phrase not documented mean?
- The phrase not documented means the directory has no sourced value for that field on that listing. The page does not fill a blank with a guess.
- Which fields are compared?
- The table columns are Status, Open source, and Tags.
- Is there a comparison page or a gap note?
- Yes. Pydantic AI vs smolagents pairs Pydantic AI with one of these alternatives. Pydantic AI has no gap note.
- When was this page updated?
- The newest date among the records used here is 2026-10-30.