All the chatbots we tested are free to use. ChatGPT is the only one that has a free version and a paid version, called ChatGPT Plus, which costs $20 per month. Other AI chatbots not reviewed here charge a range of prices. There isn't much consistency in this market yet. For example, another popular AI tool called Jasper costs $49 per month for individuals and $125 per month for teams. Perplexity charges $20 per month. HuggingChat by HuggingFace is free.