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I later realised that it had defaulted to using the Standard model, not the new Strong model.
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I have an update to report - I might have been a bit too hard on TPAI 1.3.0, but it's still in the dog-house. It's kind of nice that you can go back and edit your original post, a novel feature compared to DPreview. I can see that Photo AI does not improve the camera-shake blur probably because, as you surmised, it is using the wrong AI model. I'm still getting to grips with how this site works. I think the three uploaded images are different, but in my initial post, the same image was erroneously used for all the inline images (now fixed). I like the image and decided it needed a gradient to reduce glare/flare in the left side sky.
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Sharpen AI and Photo AI results looked similar, so I saved the files and ran cmp (compare). You got them under 4MB! But I think there is posting error here.
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