Gemini 3.1 Pro Reasoning Formatting
Screenshot 2026-02-22 at 00.19.41.heic
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Screenshot 2026-02-22 at 00.19.47.heic
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How Gemini 3.1 Pro’s messages are being passed down to client seems to be broken. I think it’s reasoning flow is being displayed as part of regular response, and regular response is shown in the markdown code.
I’m using Helium browser on macOS 26.2, but this seems to be server formatting issue more than anything else.
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Comments1
Mark Florkowski
reported to the DeepMind team. seems to be an issue on the model’s side where it is not producing properly formatted reasoning traces