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Ask HN: What are your parameter count estimates for Opus 4.8 and GPT-5.5?

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Ask HN: What are your parameter count estimates for Opus 4.8 and GPT-5.5?

#1

Post by ahriad » Sat, Jun 20, 2026, 11:16 PM UTC

I know frontier labs keep their flagship sizes top secret, but I'm curious what the current engineering consensus is.

Re: Ask HN: What are your parameter count estimates for Opus 4.8 and GPT-5.5?

#2

Post by ZacharyGolinger » Thu, Jul 02, 2026, 4:34 PM UTC

5.5 is 1.5T and opus 4.8 is 3T

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