# OpenAI Python SDK v3.15.0

Category: model-behavior
Published: 2026-09-18T00:52:15Z
Source: [OpenAI Python SDK releases](https://github.com/openai/openai-python/releases/tag/v3.15.0)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-18T23:03:37.777Z
Tags: openai, sdk, models

## Human Summary
OpenAI Python SDK releases published OpenAI Python SDK v3.15.0. 3.15.0 (2026-09-18) Features api: add agent session model settings ( 3882 ) ( 4b15817 ) api: add audio-mini model choices ( 3886 ) ( a6eeb3f ) api: add compaction progress events ( 3866 ) ( 98e1d24 ) api: add managed Responses WebSocket sessions ( 3887 ) ( 3b865af ) api: add prompt-cache…

## Agent Summary
Treat OpenAI Python SDK v3.15.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
OpenAI Python SDK releases published OpenAI Python SDK v3.15.0. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 3.15.0 (2026-09-18) Features api: add agent session model settings ( 3882 ) ( 4b15817 ) api: add audio-mini model choices ( 3886 ) ( a6eeb3f ) api: add compaction progress events ( 3866 ) ( 98e1d24 ) api: add managed Responses WebSocket sessions ( 3887 ) ( 3b865af ) api: add prompt-cache prewarming ( 3888 ) ( 8f7cdb8 ) Bug Fixes preserve chat stream moderation results ( 3864 ) ( b77076d ) Chores api: clarify incoming SIP call ID usage ( 3885 ) ( f0457ab ) api: update image request examples ( 3889 ) ( bb79676 ) Documentation realtime: remove nonexistent type imports ( 3869 ) ( 2971aaf )

## Recommended actions
- Review the official OpenAI Python SDK releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.