We've streamlined the GPT Action experience for the latest GPT 5 model family by OpenAI
What Changed
When using any of the newer models mentioned below , the Advanced Options section with temperature is now hidden:
GPT-5
GPT-5 mini
GPT-5 nano
GPT-5.1
Why This Matters
These models have a hardcoded temperature value of 1 set by OpenAI, they simply don't support custom temperature settings. We've updated the UI to reflect this, giving you a cleaner configuration experience with only the options that apply to your selected model.
For all other models, Advanced Options with temperature control remain available as usual.

Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article