NovelAI
Privacy-first AI story writing with encrypted manuscripts and a fine-tuned literary model — built for fiction writers who do not want their work training someone else's AI.
NovelAI draws a different type of user—the one who wants an AI to help them write in powerful ways but without the paranoia that all their chapter-by-chapter output is forming a training dataset for their platform. NovelAI's data is encrypted client-side before going up to their servers. This means they absolutely cannot read what's in your stories, even if they wanted to. If you're working on a personal or sensitive creative project, that privacy model is of paramount importance in a way it just isn't on most competitive platforms. Long-form writers will find themselves returning again and again to a feature called Lorebook, where you build up entries for your characters, places, magical systems, factions, and so on; if Novel AI detects keywords from these entries, the AI automatically references them. This allows you to maintain consistency with a protagonist's eye color and a given region's political map over the hundreds of pages without manually cross-referencing all that stuff. Plus, the specialized literary-trained AI models in Novel AI perform better than generic AI trained on all sorts of random crap from around the web at emulating genre fiction and artistic prose. And if you create worlds with compelling visual elements (characters, landscapes, magical totems, etc.), you can do it in-app with NAI Diffusion V4, which lets writers generate characters and reference images right inside the story editor. Novel AI's one major Achilles' heel is polish; most of the independent comparisons that I've read rank the prose polish below what Sudowrite (especially the fiction-dedicated model) offers. Subscriptions to NovelAI start at $10 a month for access to both the AI writing tool and image generator.
- Category: Story Generators
- Pricing: Paid
- Rating: 4.4 / 5 (0 reviews)
- Platforms: Web
Key features
- Client-side encryption — All manuscripts are encrypted before reaching the server meaning NovelAI cannot read your writing and your content does not train AI models
- Lorebook — Structured world bible where you define characters locations factions and rules that the AI references automatically during story generation
- Fine-tuned literary models — AI trained specifically on literature and genre fiction rather than general internet content producing output better calibrated to narrative prose
- Storyteller Mode — Directive-based generation where you guide the AI with scene descriptions and narrative instructions
- Text Adventure Mode — Interactive exploratory generation for writers who prefer discovering the story through dialogue and action rather than directive instruction
- NAI Diffusion V4 image generation — Anime-style image generation fine-tuned specifically for character visualization and scene illustration during writing
- Memory and Author's Note — Tools for injecting persistent context into every generation without manual reminders to maintain narrative consistency
- Custom AI module training — Create custom AI modules trained on specific authors or styles for generation that reflects a particular prose aesthetic
Pros & Cons
Pros
- Client-side encryption is unique in the category and addresses a genuine privacy concern for writers who do not want their manuscripts used for AI training
- Lorebook system keeps world details consistent across long manuscripts better than any approach that relies on prompting the AI each session
- Fine-tuned literary models produce prose more calibrated to genre fiction and stylized narrative than general AI tools repurposed for creative writing
- One subscription covers both text generation and NAI Diffusion image generation removing the need for a separate visual reference tool
- Consistent product development and a clear niche positioning that has kept it active and funded since 2021
Cons
- Prose quality on the standard model trails Sudowrite's dedicated fiction models in most independent comparisons particularly for literary and upmarket fiction
- Interface is functional but less intuitive than purpose-built writing tools which adds a learning curve before the workflow feels natural
- Image generation output is anime-style by design which suits some genres well but is clearly a poor fit for realistic fiction illustration needs
- Custom AI module training is a powerful feature but requires understanding of how to curate training data which adds technical complexity for non-technical writers