Sidenote I can't imagine openai would ever be able to <i>actually</i> patent gpt-x given that they neither invented the model (google did) nor created the training data.
Looks like they're adding in quite a few "multimodal" features in GPT-5. Emphasis on audio: artificial speech production, audio-to-text, voice recognition - likely building on Whisper. Translation for text/speech also seems on the roadmap.