OpenAI just revealed that 'many' potential investors have walked away over its unusual structure

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• OpenAI says it has struggled to raise funds due to its nonprofit structure.
• The company just revealed its fundraising challenges in a letter to California's attorney general.
• OpenAI plans to restructure as a Public Benefit Corporation to attract investors.

OpenAI is one of the most well-funded startups in history, raising a massive $40 billion round led by SoftBank earlier this year.

But many investors...