DALL-E 2 appears to be adding words to prompts to promote diversity
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Regardless, OpenAI has acknowledged the bias found in past results and that techniques have been applied to help address it:
https://openai.com/blog/reducing-bias-and-improving-safety-i...
This a good time for a reminder that biases in training data will produce biased results. Just because the data might contain hundreds of thousand of white male business people doesn't mean we want/need that bias to be reflected in the output.
https://www.theverge.com/2016/3/24/11297050/tay-microsoft-ch...
People like to think that ML/AI can only produce truth, while in actuality it only reflects back what it is shown.