This is the second time OpenAI has released something right at the same time as google did (Gemini 1.5 Pro with 10M token context length just now). Can't just be a coincidence
And the tech demo of GPT-4 was Sam interacting with the thing and showing what it did well and where it faltered. We could also access the thing soon after. Not so with Gemini. Hell even Mixtral got me more excited.
I too noticed the coincidence. Not to be a conspiracy theorist but part of me wonders if they share this information with each other, or if OpenAI has advancements like these sitting in the chamber and they are willing wait a few weeks before they release them to maximize the impact of the timing.