Registry › Compare › OpenAI Agents SDK vs PydanticAI

OpenAI Agents SDK vs PydanticAI

Both are Grade A and 3.2 points apart, so choose on what you weigh most. OpenAI Agents SDK leads on supply-chain integrity and transparency.

A OpenAI Agents SDK 91.5

A lightweight, powerful framework for multi-agent workflows

openai/openai-agents-python · #13 overall · #5 Agent Frameworks · coverage A (4/5)

Choose OpenAI Agents SDK if supply-chain integrity and transparency matter most.

+2.5Safety / Integrity: OSSF Scorecard 7.9 against 5.9
+1.7Transparency: OSSF Scorecard 7.9 against 5.9
+0.9Adoption: 3.0M weekly downloads against 1.4M

A PydanticAI 88.3

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

pydantic/pydantic-ai · #40 overall · #8 Agent Frameworks · coverage A (4/5)

PydanticAI doesn't lead on any scored dimension in this pair.

Where they differ

22.4

Safety / IntegrityOpenAI Agents SDK +2.5

19.9

15.2

TransparencyOpenAI Agents SDK +1.7

13.5

19.9

MaintenancePydanticAI +0.1

20.0

19.4

AdoptionOpenAI Agents SDK +0.9

18.5

-3.4

Runtime calibrationPydanticAI +1.8

-1.6

1 dimension identical: Identity 18.0 · Full evidence table

An independent, evidence-based trust comparison of OpenAI Agents SDK and PydanticAI, two Agent Frameworks projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Full evidence

Signal	OpenAI Agents SDKopenai/openai-agents-python	PydanticAIpydantic/pydantic-ai
HVTrust score	91.5	88.3
Evidence grade	A	A
Coverage grade	A	A
Overall rank	#13	#40
Rank in Agent Frameworks	#5	#8
GitHub stars	29.9k	20.5k
Last updated	1d ago	today
Build provenance	Yes	Yes
OSSF Scorecard	7.9 / 10	5.9 / 10
License	MIT	MIT
Downloads	3.0M/wk	1.4M/wk
Trust dimensions (points earned)
Safety / integrity / 25	22.4	19.9
Identity & provenance / 18	18.0	18.0
Transparency / 17	15.2	13.5
Maintenance / 20	19.9	20.0
Adoption / 20	19.4	18.5
Runtime capability surface (full matrix)
MCP server	Declared	Declared
External providers	6 — Amazon Bedrock, E2B, Multi-provider (LiteLLM), …	8 — Amazon Bedrock, Anthropic, Cohere, …
Requires API keys	Yes	No
Plugin surface	extensions	plugins
Provenance drift	Match	Match

Open in the live compare tool → OpenAI Agents SDK profile PydanticAI profile More Agent Frameworks →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →