Did you switch to Opus 4.7 and notice all your tokens are gone? Yeah, me too. Here's why and how to fix it.
Did you switch to Opus 4.7 and notice all your tokens are gone? Yeah, me too. Here's why and how to fix it.
Opus 4.7 adds a new effort level — extra high. We get an extra gear!
The chart shows 4.7's low beats 4.6's medium. Medium beats high. And high beats 4.6's max.
So, whee do our tokens go? 4.6 defaulted to medium — about 52k tokens. 4.7 defaults to extra high — 110k tokens.
I'm finding it as good or better, but it's burning tokens faster than 4.6.
How does this compare to the new Mythos model?
Mythos scored 93.9% on SWE-bench Verified. Opus 4.6, which changed the world, scored 80.8%. That's not a little better. And it gets harder as you approach 100%, that’s a huge difference.
For perspective: the jump from Opus 4.1 to 4.5 was earth-shattering. 4.1 scored 74.5%, 4.5 scored 80.9%.
Opus 4.7 still hits 87.6% — really strong.
So yes, you're using more tokens. Crank it down to medium and you'll get slightly better results than 4.6 with slightly fewer tokens. Want Mythos-level performance? Keep it extra high.
Great results, but… nom nom tokens.