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Tom’s Guide
Tom’s Guide
Technology
Amanda Caswell

I tested GPT-5.5 Instant — and it finally stopped overexplaining everything

OpenAI
ChatGPT logo on phone .

Just when I was getting used to ChatGPT-5.5 Thinking, OpenAI launches ChatGPT-5.5 Instant. Rolling out today, this model promises shorter, faster answers. More power and more speed, without the "yapping" that ChatGPT is known for.

That's why this one feels noticeably different. In my testing, GPT-5.5 Instant consistently gave tighter, more focused responses. When I asked for quick feedback, it didn’t default to a mini essay. When I wanted depth, it still delivered but only when it made sense.

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