What is GPT-4o, and how is it different from GPT-3, GPT-3.5 and GPT-4?

Cointelegraph.com NewsGPT-4o is an optimized version of GPT-4 designed to offer improved performance and efficiency over the GPT-3, GPT-3.5 and GPT-4 models. 

​GPT-4o is an optimized version of GPT-4 designed to offer improved performance and efficiency over the GPT-3, GPT-3.5 and GPT-4 models.