https://techcrunch.com/2022/07/28/twitter-is-increasing-the-price-of-twitter-blue-from-2-99-to-4-99-per-month/

Twitter is increasing the price of its subscription service, Twitter Blue, from $2.99 to $4.99 per month. Starting in October, existing subscribers will have to pay more. New users will currently have to pay the hiked rate.

Apart from the U.S., the price hike is also applicable to other countries like Australia, Canada, and New Zealand with new fees being 6.99 AUD (previously 4.49 AUD), 6.49 CAD (previously 3.49 CAD), and 6.49 NZD (previously 4.49 NZD).