Since I discovered AVM with GPT-4o mini on Plus, I’ve been eager to burn through the infernal hour OpenAI gives me to use the standard 4o, which only paraphrases what I say. The 4o mini is slightly dumber but bolder, it talks more and explains better.
    
    I use Advanced Voice Mode around 4–5 hours a day with the Plus subscription, and I definitely find the 4o mini much better. I’d even say it’s similar to the standard model but with about 300 ms faster responses and a more realistic voice. However, it still doesn’t follow personalized instructions to the letter, it keeps leaning more toward OpenAI’s system prompt.