The picker offered an off switch for every reasoning model, including routes
whose upstream answers a disable with HTTP 400 — so "thinking off" was a
control that could not work. Carry the catalog's mandatory verdict through
model.options as can_disable_reasoning and hide the toggle when it is false.
Effort levels are left alone. The catalog's supported_efforts under-reports
what the Portal serves (z-ai/glm-5.3 publishes max, high, low yet honors
minimal at its lowest thinking), so filtering the scale by it would hide
levels that work.
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