Forecast from 5/22, EPS on top and AI-EPS on the bottom
Now what is likely to verify. This picture doesn't change substantially for other models. Looks like the AI won this round:
A seasonal correlation coefficient of 0.1 to 0.3 isn’t statistically significant though. It looks like the influence is weak or dependent on the structure of the ENSO/general circulation evolution (which varies widely between ENSO events).