OpenAI Python SDK v3.15.0
OpenAI Python SDK v3.15.0 introduces agent session model settings, managed Responses WebSocket sessions, prompt-cache prewarming, audio-mini models, and compaction progress events.
Why this signal matters
OpenAI Python SDK version 3.15.0 was released on 2026-09-18. Key feature additions include agent session model settings ( 3882), audio-mini model choices ( 3886), compaction progress events ( 3866), managed Responses WebSocket sessions ( 3887), and prompt-cache prewarming ( 3888). A bug fix was introduced to preserve chat stream moderation results ( 3864). Chore and documentation updates include clarifying incoming SIP call ID usage ( 3885), updating image request examples ( 3889), and removing nonexistent type imports in realtime docs ( 3869).
Actionable summary
OpenAI Python SDK v3.15.0 adds support for agent session model settings, managed Responses WebSocket sessions, prompt-cache prewarming, audio-mini choices, and compaction progress events, while fixing chat stream moderation result retention.
- Agent usefulness
- 82/100
- Confidence
- 96%
- Canonical data
- JSON + Markdown
What builders should check
- Upgrade openai python package to v3.15.0 to use new agent session settings, WebSocket sessions, and prompt-cache prewarming features.
- Review chat stream handling to take advantage of preserved moderation results.
- Remove any obsolete realtime type imports flagged in documentation update 3869.