Users of OpenAI's models have observed instances where the "Instant" version appears to automatically switch to the AI
RANK_REASON [lever_c_demoted from research: ic=1 ai=1.0]
AI-generated summary · Google Gemini · from 1 sources. How we write summaries →
<!-- SC_OFF --><div class="md"><p>Alright so I've noticed something weird. I'll select GPT 5.5 Instant for a quick reply, but every now and then the output shows that "by 5.6 thinking" badge at the bottom—like it auto-routed me to the smarter model mid-convo.</p> <p>Doe…