# OpenAI Python SDK (openai) - AgentBreakWatch Reference

> TL;DR Verdict: OpenAI Python SDK (`openai`) is currently at v3.37.0 on PYPI (published 2026-10-22), with a 90-day Stability Score of 78/100 (B) and MEDIUM schema drift risk across 55 releases in the last 90 days. v3.x Python SDK enforces Pydantic v2 strict models on client.responses.parse and removes legacy beta.threads assistants helpers.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/openai-python
- Category Hub: https://agentbreakwatch.vercel.app/c/agent-sdks (AI Agent SDKs & Frameworks Breaking-Change Index)
- Package Name: `openai`
- Registry: PYPI (https://pypi.org/project/openai/)
- GitHub Repository: https://github.com/openai/openai-python
- Vendor: OpenAI
- Latest Live Version: v3.37.0
- Published Date: 2026-10-22T20:04:37.707977Z
- 90-Day Release Count: 55
- Direct Dependencies: 15
- License: Apache-2.0
- Stability Score: 78/100 (Grade B)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `pip install "openai==3.37.0"`
- Watched Symbols / MCP Tools: OpenAI, AsyncOpenAI, client.responses.parse
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v3.x Python SDK enforces Pydantic v2 strict models on client.responses.parse and removes legacy beta.threads assistants helpers.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
completion = client.beta.chat.completions.parse(
    model="gpt-4o",
    messages=messages,
    response_format=CalendarEvent,
)
```

## Migration Diff: After (Verified v3.37.0 Pattern)
```
response = client.responses.parse(
    model="gpt-5",
    input=messages,
    text_format=CalendarEvent,
)
```

## Recent Verified Releases
- v3.37.0 (published 2026-10-22) [LATEST]
- v3.36.1 (published 2026-10-22)
- v3.36.0 (published 2026-10-21)
- v3.35.1 (published 2026-10-18)
- v3.35.0 (published 2026-10-17)
- v3.34.0 (published 2026-10-17)