OpenAI Python SDK releases · September 18, 2026 · 1 min read

v3.15.0

#version-bump #agents #music

Mirrored from OpenAI Python SDK releases for archival readability. Support the source by reading on the original site.

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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)

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