Civitai offers a web-based AI image generator that lets any registered user turn text prompts into images using thousands of community-uploaded models, including Stable Diffusion, SDXL, and Flux, without needing a personal graphics card. The generator launched in September 2023 and has grown to support advanced workflows like face enhancement and high-resolution upscaling.

The on-site Image Generator is a cloud-hosted interface for Stable Diffusion and related diffusion models. Users input text prompts and select from tens of thousands of models, LoRAs, and embeddings hosted on the platform; the platform's servers handle all compute. Additional workflows include 'Face fix' (which detects and enhances human faces using a specialized AI pass) and 'Hi-res fix' (which increases image resolution during generation). Access is available to all registered users and costs Buzz, the platform's virtual currency, with a small daily free allowance.