Ai Chat Companions

Character.AI is the leading AI character chat platform with 20 million monthly active users and 18 million user-created chatbots. Users spend an average of 2 hours daily — double ChatGPT’s session length. Free / c.ai+ at $9.99/month.

Civitai is the largest open-source AI model sharing community for Stable Diffusion, hosting thousands of user-contributed checkpoints, LoRAs, embeddings, and fine-tuned models. Free to browse and download. In-browser generation powered by Buzz credits. Memberships from $10/month.