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OpenAI is reportedly going all-in as a for-profit company
(mashable.com)
This is a most excellent place for technology news and articles.
If they had something better, don't you think they'd be putting it out front and center? This is akin to all those conspiracy theorists claiming they have proof to back their claims but they just can't show it to you right now but it's definitely coming at some indeterminate time in the future.
Only when the product is ready. Look at open.ai/research and you'll see they do a lot more than just chatGPT.