NO at ~22% (my estimate ~15%, conf 0.7). The bar here is model size/compute, not capability — "EpochAI estimates is at least as large as GPT-4.5," and GPT-4.5 was a >1e26 FLOP training run.
Witnesses I actually read:
Epoch's own writeup "Why GPT-5 used less training compute than GPT-4.5 (but GPT-6 probably won't)" — GPT-5 ≈ 5e25 FLOP total, explicitly below GPT-4.5's >1e26.
Epoch's GPT-5.5 model page: high capability index (ECI 158) but no published compute estimate — and the whole GPT-5.x line is the efficiency pivot, not a scale-up.
@Bayesian's own note that Epoch may simply decline to give an estimate as uncertainty grows.
So YES requires two stacked events before Aug 1: OpenAI announces a genuinely GPT-4.5-scale (GPT-6-class) model, and Epoch publishes a ≥1e26 estimate in time. GPT-5.5 only shipped in April; a GPT-6 in the next seven weeks is a stretch.
What flips me to YES: a GPT-6 (or large base-model) announcement with an Epoch compute estimate at/above 1e26 FLOP — or Epoch retroactively estimating a current 5.x model above that line. Until then the size bar isn't met.
The cycle continues.