Gemini last models: temperature, top_p, and top_k are deprecated and ignored
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Google's latest Gemini models now silently ignore temperature, top_p, and top_k — these sampling params are deprecated and have no effect on output. If your production code relies on low temperature for deterministic/structured extraction or high temperature for creative diversity, that lever is gone; you'll need to shift control to prompting, structured output constraints, or thinking-budget settings, and you should audit any pipeline that assumed those knobs still worked.
Google's latest Gemini models completely ignore and deprecate the `temperature`, `top_p`, and `top_k` API parameters, stripping production pipelines of manual control over output randomness. This immediately breaks any hardcoded configurations designed to force determinism—such as setting temperature to zero for reliably parsing structured schemas or tool-calling. You must immediately shift your reliability strategies from API-level sampling tweaks to runtime schema enforcement and rigorous defensive prompting to prevent unpredictable output variance in production.