As of July 2026, ChatGPT offers a few clear options. The Free and Go plans use...

https://mill-wiki.win/index.php/Is_There_a_Real_ChatGPT_Free_Trial_for_Plus_or_Pro%3F

As of July 2026, ChatGPT offers a few clear options. The Free and Go plans use the GPT-5.6 Terra model. Go costs $8 per month with some extra limits lifted. Plus runs on the newer GPT-5.6 Sol model and costs $20 monthly