Generally, Google Gemini is considered the best free chatbot. Gemini provides access to its latest models, including the 3 Pro and Veo 3.1, along with deep research and voice chat features, all for free. You also get 15GB of cloud storage via Google Drive. Many other services put their most advanced models behind paywalls, while luxuries like cloud storage are a rarity, even with paid plans.

Of all the chatbots on this list, Grok is the only one that truly allows explicit content. You can use Grok to generate NSFW images and videos, as well as have explicit relationships with its virtual companions, such as the anime character Ani. That said, Grok isn't necessarily the best place on the internet for either AI companionship or porn, even though it’s the only full-service chatbot on this list to allow that. You might be better off looking for a dedicated AI service if you primarily want to generate explicit content.