There is an amount of brute forcing that becomes possible at those speeds that I think could even take us beyond 80%. If we could have Qwen3.6-27B running at 15k t/s, run 100 attempts concurrently, select top-K solutions and synthesize a final result from them.
There was a paper a while back that showed top-K selection like that with tiny models was able to reliably solve some 1M-step Tower of Hanoi when no frontier model could. Very big level up in capability just from horizontally scaling compute.
100 dumb folks don't make an Einstein
But some (Meta, Anthropic) suggested that optimizing and extending the "<think>" process can produce extra value. (I do not know if that requires an improved underlying architecture - frontier models architectures are sometimes not public.)
You pull out Einstein when you need a breakthrough.