There are numerous benchmarks that measure cost per task, which factors out tokens entirely. Gemini 3.8 flash is significantly lower than Sol on basically all of them

https://artificialanalysis.ai/#cost-tabs

That said, Luna is the undisputed king here at the moment and is what I use as my workhorse model.

It's so funny how many people diverge on the same model.

Ps. For the last week I diverged to Luna too, still need to check 3.8 flash.

But 3.6 flash was my go-to model 3 weeks ago and before it was deepseek flash/pro for a while.

None of the claude models seemed cost effective though.