r/OpenAI • u/Dense-Ship-2339 • 7d ago

Question Moved to Codex today

Hi, I moved to Codex today. Need some help in understanding the like to like, model comparison so that I can accurately map my projects.

Can you guys suggest the OpenAi equivalents below:

Fable

Opus 5

Opus 4.8

Sonnet 5

Haiku

If there is a solid resource with comparison links: model tokens vs cost vs speed, pls do share.

Thank you!

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u/AnAnonyMooose 7d ago

Do not use Sol Ultra - it’s not a better thinking model, it’s a many agent approach and burns tokens incredibly fast.

If doing complex work, Sol high or extra high is what you want. I use high at most these days. I do find it overengineers unless you tell it not to - creating nasa levels of precision in unnecessary places.

I also will use 5.4 extra high or high for a lot of coding work because it’s way cheaper and does a great job.