Custom GPT Actions work in text but never execute in Voice Mode (InvalidRecipient : Unrecognized recipient))
OpenAI Developer Community
June 28, 2026
Hi,
Thanks for the clarification.
Could you confirm whether Custom GPT Actions in Voice Mode are:
1. intentionally not supported (by design / product decision)
or
2. temporarily not supported (work in progress / roadmap item)
In other words, is there any plan to enable full tool / Actions execution in Advanced Voice Mode for Custom GPTs in the future?
This is critical for understanding whether Voice Mode can be used as an interaction layer for action-based agents.
Thanks
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