EasyOCR is LSTM-CTC from 2007, RapidOCR is a ConvNet approach from 2021, both focused on speed. Both will vastly outperform almost any transformer model, and certainly a big one, on speed and memory usage, but they aren't state of the art on accuracy. This is well known, for a decade at this point. 2 decades for LSTM-CTC.
Plus, I must say the GPT-4o results look a lot saner. "COCONUT" (GPT-4o) vs "CONU CNBC" (Gemini) vs Ground Truth "C CONU CNBC". And, obviously the ground truth should be "COCONUT MILK" (the word milk is almost entirely out of the picture, but is still the right answer that a human would give). The "C CONU" comes from the first O of COCONUT being somewhat obscured by a drawing of ... I don't know what the hell that is. It's still very obvious it's meant to be "COCONUT MILK", so the GPT-4o answer is still not quite perfect, but heaps better than all the others.
Now this looks very much like it might be temperature related, and I can find nothing in the paper about changing the temperature, which is imho a very big gap (temperature gives transformer models more freedom to choose more creative answers. The better performance of GPT-4o might well be the result of such a more creative choice, and might also explain why Gemini is trying so hard to stay so very close to the ground truth. It's still quite the accomplishment to succeed, but GPT-4o is still better)