Even a “low” amount of thinking degrades the model’s capability in creative tasks. In Gemini 2.5 pro we could get around it by explicitly instructing the model not to think, but with Gemini 3 the ‘thought’ tags seem be to be hardcoded in. This is extremely disappointing.

Please give us the option to disable thinking for Gemini 3

LCH_ChatDev November 20, 2025, 5:52am 7

I need a feature to tune the thinking parameters due to the trade-off between cost and output tokens.

Please see the relevant post below.

Topic		Replies	Views
Are there any plans to ever release a pro model with the option to turn thinking off? Gemini API model , thinking	1	105	June 6, 2025
Allow Thinking to be optional in Gemini 2.5 Google AI Studio gemini , prompt	1	274	March 26, 2025
How to Reduce Thought Reasoning in Gemini 2.5 Pro Gemini API api , models	7	2395	June 9, 2025
"Low" Reasoning Instability & Output Budget Cannibalization (Gemini 3.0 Pro) Gemini API feedback , api , models , gemini	1	150	November 21, 2025
Turning off thinking in Gemini Pro 2.5 Google AI Studio gemini , thinking	3	213	November 8, 2025