NovelAI, developed by Anlatan Inc., is a monthly subscription service combining AI-driven prose generation with a dedicated anime image generator. Users co-write stories with large language models that retain context over long narratives, while the image side offers text-to-image generation, inpainting, Vibe Transfer style matching, and post-processing tools such as background removal and line art. The platform markets itself toward fiction writers, roleplayers, and anime art enthusiasts who want a private, customizable creative space. Plans are priced by monthly credits (called Anlas) and model access, with the top tier unlocking the largest text model. Content can range from SFW creative writing to NSFW roleplay and imagery, with privacy emphasized. NovelAI is one of the longer-running independent players in the AI companion and creative-writing niche and is frequently cited as an alternative to mainstream image and chat tools.