Hello @Damon_Roux,
Have you looked at the model text description? There might be layers or layers between 293 and 294.
I don’t know exactly which implementation of InceptionV3 do you use but it is highly likely that there might be AvgPool2d or some other pooling layer between InceptionE-293 and Linear-294. Pooling layer reduces the dimensionality in the first case when the tensor passed to a fully connected layer and in the second case when it’s passed to identity layer.