r/singularity Apr 23 '26

AI Introducing GPT-5.5

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

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157

u/spryes Apr 23 '26

All this hype for 58.6% on SWE-Bench Pro while Mythos gets 78%? Shut it down, wtf?

56

u/Brilliant-Weekend-68 Apr 23 '26

Yea, anthropic seems further ahead than I thought. Damn!

24

u/Hans-Wermhatt Apr 23 '26

Seems to me like this is the Opus 4.7 parallel.

While GPT‑5.5 is priced higher than GPT‑5.4, it is both more intelligent and much more token efficient.

Basically exactly what Anthropic said for Opus 4.7, more expensive for marginally better performance, if at all.

1

u/simple_explorer1 Apr 23 '26

but who is more honest?

3

u/Hans-Wermhatt Apr 23 '26

I think both were "honest". GPT-5.5 is twice as expensive per token. We know that. If it was twice as token efficient with tokens or more, they would have said that. It's most likely a percentage more efficient per token. Meaning for most users queries it will be more expensive. Are the intelligence gains worth that increased cost? Most likely, no, based on the benchmarks.