ChatGPT Plus lists for $20 a month, but the price you see can change based on...

https://johnathankvdj950.wpsuo.com/does-chatgpt-plus-include-api-access-or-api-credits

ChatGPT Plus lists for $20 a month, but the price you see can change based on your country’s taxes like VAT or GST. If you subscribe through an app store, expect a higher cost because they add their own fees