The #1-scoring model also hallucinates the most — here's when to switch

Get the GPT-5.5 vs Claude vs Gemini Cheat Sheet

The companion to the video on GPT-5.5 — OpenAI's model that scored 60 on the Artificial Analysis Intelligence Index, 3 points clear of Claude Opus 4.7 and Gemini 3.1 Pro, and also carries an 86% hallucination rate, the highest of any frontier model (Claude Opus 4.7 sits at 36%). This one-page cheat sheet is the honest side-by-side: the full scoreboard (intelligence score, hallucination rate and price for all three models in one table); the 5 things GPT-5.5 is actually built for (data analysis, coding, software operation, research, documents); the pricing twist that flips the math ($5/$30 per 1M looks expensive until you learn GPT-5.5 medium matches Claude max at ~1/4 the cost, with coding priced at roughly half of rivals); Standard vs Pro (Thinking) and which to run; a should-you-switch decision framework for four common situations; and 6 print-and-keep rules. Every number is from the launch itself — so you pick the model by the job, not the headline.

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