ChatGPT inventor OpenAI has raised $6.6 billion in a financing round. The money will be used to expand computer capacity and drive forward research into artificial intelligence, the company said in a statement on Wednesday. OpenAI was valued at a total of around $150 billion in the financing round. The total valuation is determined by the share of the company that investors receive for their money. To date, Microsoft has been OpenAI’s most important financial backer and incorporates the company’s technology into its products. The firm did not disclose who participated in the financing round. A…