[OpenAI's Sales and Marketing Expenses for the First Half of 2025 Increase to $2 Billion] According to Golden Finance, OpenAI expects its weekly user count to reach 1 billion by the end of this year, up from around 500 million in March. The company has also increased its sales and marketing expenses for the first half of 2025 to $2 billion, nearly double the total expenditure for all of 2024.