Best NovelAI Alternatives in 2026 (For Fiction, Not Chat)

NovelAI doesn't lose users the way Character.AI does. Nobody storms out over a filter, because there isn't one. People go looking for an alternative for a quieter reason: the ceiling. In October 2025 NovelAI moved every tier to GLM-4.6, an open-weights model, and in March 2026 shipped Xialong, their own finetune of it, exclusive to the $25 tier. Both are respectable. Neither is a frontier model — and the gap is the kind you feel a few scenes deep, when the story either opens up or begins to repeat itself.

The second reason is arithmetic. A flat subscription is a great deal if you write for hours every day and a quiet tax if you write three evenings a week. Both reasons point at the same short list.

1. Underfiction — frontier prose, paid by the word

Underfiction is interactive fiction rather than a drafting desk: you set a scene, write your side, and a frontier model — Fable, Opus, Gemini, or Grok, with uncensored open-weights options alongside — writes the world back in literary prose. The structural ideas NovelAI users care about are here in different clothes: stories are scenes and chapters, and scene summaries do the lorebook's job of carrying facts forward without hand-feeding context.

No content filter, stated plainly. And the pricing inverts the subscription: credits, spent per word generated, never expiring, 500 free after email confirmation. For an evenings-and-weekends writer that usually undercuts a subscription — and it's the only way anyone currently sells frontier-model fiction without a monthly fee.

Best for: writers who want the best available prose and a bill that matches their actual pace.

2. Sudowrite — the manuscript tool

Sudowrite is for writing a novel you intend to finish and sell: outline tools, scene expansion, a Story Engine that drafts alongside you. Plans run $10 to $44 a month billed annually ($19 to $59 monthly), differing only in monthly credit pools. It is not interactive fiction and doesn't pretend to be — you are the author at a desk, not a character in the scene. As a drafting instrument it's the most complete thing in its lane.

Best for: novelists who want help producing a manuscript.

3. Novelcrafter — bring your own model, keep the receipts

Novelcrafter charges $4 to $20 a month for the writing environment — codex, planning boards, chapter structure — and you connect your own model key and pay the provider directly. For writers comfortable managing API keys it's the cheapest route to serious tooling, and the codex will feel familiar to any lorebook user. The tradeoff is that nothing is bundled: model choice, cost control, and refusal behavior are all yours to manage.

Best for: planners who want NovelAI-style structure with their own engine.

4. SillyTavern — the tinkerer's endgame

Free, open source, self-hosted, and pointable at anything — including a model running on your own hardware, which is the one configuration nobody can ever change underneath you. Lorebooks, group scenes, total prompt control. The cost is your time: it's software you administer, not an app you open. Closest of anything here to NovelAI's original spirit of user control.

Best for: writers who enjoy the machinery and want nothing hosted.

5. AI Dungeon — if what you miss is the adventure

If your NovelAI use was really text adventuring, AI Dungeon is the purpose-built version: scenarios, quests, a game economy. Free to start, then $14.99 to $99.99 a month for credit allowances and context from 4k to 32k tokens. Solo play is close to unfiltered. The prose keeps a game register — event-driven, second person — which is either the point or the dealbreaker.

Best for: game-framed fiction rather than literary pages.

When staying with NovelAI is right

Three cases, honestly. If you write many hours a day, flat-rate unlimited generation is arithmetic nobody here beats. If client-side encryption is your deciding factor — the company cannot read your stories, full stop — NovelAI remains nearly alone in offering it, and we won't pretend otherwise: Underfiction syncs stories encrypted at rest and we don't read them, but the key model is not client-side. And if anime image generation matters to you, that's still their crown jewel.