OpenAI (OPAI.PVT) on Monday said it is launching premium seat options for ChatGPT Business. The move comes as the company looks to grow its revenue sources ahead of its planned initial public offering (IPO). In a post on its website, OpenAI said the premium service is intended for power users and offers five times the usage of its standard ChatGPT Business seats. The premium plan costs $125 per user per month, or $100 per user per month billed annually. The standard business plan costs $25 per user per month, or $20 on an annual billing cycle.