MTP is lossless in the sense that running a model with and without (at temp=0, meaning no randomness) will produce identical results. It's true that with enough samples across domains and runs with MTP it should even out around concrete numbers, but I don't have time currently for long tests. On a quick test (before I remembered MTP is on), 27B was around 60-70 ts and 35B around 180-200 ts, both going up and down but mostly in those ballparks, which is inline with the ~3x from not using MTP.

One somewhat related thing is that, without drafters (the models doing just generation) ts tends to slowly go down, while with drafters, as the model is "checking drafts" instead of pure generation, even when the avg ts has fallen to say 50 ts (27B, ~128k ctc for example), there still tend to be random spikes to up to 70 (mostly during coding), which is always funny to me but also makes models a bit more "resilient" to the slow degradation of ts.