If Theo can do it, there's no reason it can't be applied on Typindmind. Currently, only Sonnet 3.7 Sonnet and Gemini 2.5 Flash support it in TM. I would love to see it for O3, O4 mini and Gemini 2.5 Pro here.
I know OpenAI restricts some models unless you've verified your organization but even with that, I don't get the reasoning text.