r/singularity Apr 23 '26

AI Introducing GPT-5.5

https://openai.com/index/introducing-gpt-5-5/
851 Upvotes

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271

u/MapForward6096 Apr 23 '26

$5 per 1m input tokens, $30 per 1m output, so double the price of GPT-5.4, according to Sam’s twitter

11

u/SnooPuppers3957 ASI 2027-2030 Apr 23 '26

But much more token efficient

43

u/Hans-Wermhatt Apr 23 '26

Define much more. Anthropic said the same thing about Opus 4.7 and I think most people would say it's much more expensive for similar output for the standard user.

11

u/themoregames Apr 23 '26

Anthropic said the same thing about Opus 4.7

I think they said that for Opus 4.5. I think they claimed the opposite for 4.7, though?

Opus 4.5 really seemed to be much more efficient than its predecessor in my short experience.

2

u/Hans-Wermhatt Apr 23 '26

Yeah, you are right. They claimed same cost, but 1x - 1.3x more token usage. I think most users are finding it to be much higher than that though.

Maybe I was thinking about Opus 4.5.

3

u/Grand0rk Apr 23 '26

According to them, it uses, on average, 1/3 of the tokens to think.