NovelAI Review: A Superb Writing Partner, and Who Should Leave

23 September 2026

Short version of this NovelAI review: NovelAI is one of the best AI writing partners you can pay for, and it is at its best when you want to write. Its own home page puts it plainly: “Build stories, worlds, and characters with an AI that writes with you, not for you” (novelai.net, September 2026). That promise is accurate. It also tells you who will be disappointed: the reader who wants to play a story someone else already wrote, rather than co-author a new one.

Below is what NovelAI does today, what it costs as of September 2026, how its Lorebook memory works in practice, and a fair list of who should stay exactly where they are.

The short verdict

• Best at: long-form collaborative writing with fine control. Sliders, modules, a Lorebook, an editor where every word is yours to change.
• Also excellent at: anime-style image generation, which is now the first thing on its home page and a large part of what the subscription buys.
• Weakest at: being a game. There is a Text Adventure mode, but it is a writing tool wearing an adventure costume. Nothing tracks what your character knows, owns or has lost unless you write it down.
• Price: a free Paper trial, then $10, $15 or $25 a month. Text generation is unlimited on every paid tier.

What NovelAI is in 2026

NovelAI has two products under one subscription. The home page leads with NovelAI Diffusion V5, its anime image model, and then the story generator, described on the same page as “a story generator built to write with you, not for you.” Both are reached from the browser; the home page FAQ says NovelAI “removes hardware barriers” and is “accessible from your mobile device with fast generation speeds and no installation required.”

Privacy is a genuine selling point. On the same FAQ, NovelAI says “your prompts are encrypted” and describes the service as offering “complete anonymity.” If you write things you would rather nobody read, that matters, and few competitors say it as directly.

NovelAI pricing, September 2026

These figures are from NovelAI’s own subscription documentation (docs.novelai.net, September 2026). We cover the tiers in more depth, including how Anlas work, in NovelAI Pricing.

Anlas are the currency for image generation. If you only write, the jump from Tablet to Opus buys you context and nothing else, so the real question is how much of your story you need the AI to see at once.

Subscriptions renew 30 days after payment, and the docs note that “all settings and stories created during the Free Trial are carried over when you subscribe.” Trying it first costs you nothing but the fifty generations.

How the Lorebook works, and why it matters

Every long story with an AI eventually runs into the same wall: the model can only see so much text at once, so something from chapter one falls out of view. NovelAI’s answer is the Lorebook, and its documentation describes it well:

“You can think of the Lorebook as a repository for supplemental information that’s added to the AI’s context as each entry comes up in your story.”

Each entry has activation keys. When a key appears in the recent text, the entry’s text is inserted into the context. Keys can be regex, can require two terms together with &, and an entry can be set to Always On. There is even a Lore Generator that drafts entries for you, and Lorebooks can be exported as a file or embedded in a .png to share.

This is a powerful, well-designed system, and it is also work. You decide what the entries are, you write them, and you choose the keys that make them fire. A writer building their own world usually enjoys that. A reader who wants to walk into a world that already exists, a novel they have finished, has to type that whole novel’s cast and geography in by hand first.

Text Adventure mode, honestly

NovelAI does ship a Text Adventure mode. The docs describe the familiar conventions: > marks a player action, l looks around, i checks inventory, x book examines the book, and compass letters move you. It works, and it has some clever touches, like wildcards that let the AI complete your action.

The docs are also candid about what > means:

“You’re only stating what your character intends to do in the story, not what’s actually happening in the narrative.”

That is the heart of it. The AI interprets your intent and writes what happens next. There is no separate record of the world that decides whether the attempt succeeded before the prose is written. Checking your inventory produces a plausible paragraph about your inventory; it does not read a list. For many players that is fine. For a long campaign it is where drift comes from.

What NovelAI is genuinely very good at

• Prose control. Sampling sliders, modules and presets give a level of control over voice and style that game-first products do not offer.
• The editor. Every line, yours or the AI’s, is editable in place. You are an author with a very fast assistant.
• Images in the same subscription. For anyone who also illustrates their characters, this is real value rather than a bonus.
• Privacy. Encrypted prompts, stated plainly on the front page.
• Unlimited text on every paid tier. There is no meter on writing.

Who should stay with NovelAI

Stay if you want to write. If the joy is shaping sentences with a collaborator and editing its drafts, NovelAI is one of the best tools made for that, and a game is not an upgrade.

Stay if you use the image generator. Opus in particular is priced around image users, and nothing aimed at text play replaces that.

Stay if you have a Lorebook you have tuned for months. That work is real, and it is portable within NovelAI’s own formats in a way it will not be anywhere else.

Who will be happier somewhere else

1. You want an open-ended game rather than a manuscript. AI Dungeon is the broader sandbox; we compared the two in AI Dungeon vs NovelAI and reviewed it on its own in AI Dungeon Review.
2. You want to chat with characters. That is a different job again, covered in AI Roleplaying.
3. You have finished a book and want to be inside it. That reader is the one below.

The reader NovelAI does not serve

You have just read the last page of a novel you loved. You do not want to write a sequel and you do not want to build a Lorebook for three hundred characters. You want to play in that world, as your own character, with its real people, factions and places kept straight.

LLM RPG is built for that one job. You upload the book as a .txt or .epub, and before you take a single turn it reads the book: it detects chapters and language and builds an atlas of the characters, factions, locations, items and events the book contains. You are shown what the reading costs before anything is spent. Then you make a character, and a game master narrates from that atlas.

What that changes in practice:

• Nobody writes the lore. The book is the lore, and it is read in advance.
• Outcomes are settled before the prose. Your attempt succeeds or fails first, and then the narration describes it, so it plays like a game.
• The run keeps its own state across reloads, and superseded facts are retired, so a character who died stays dead.

What it costs, plainly: there are ready-made worlds you can play without an account and without a book. A turn costs one credit on the standard narrator (three on premium), extracting an uploaded book costs one credit per 50,000 characters, and the plans are $9 a month for 1,000 credits or $29 for 3,000. Details are on the pricing page.

NovelAI vs LLM RPG, on the rows that differ

Neither column is a criticism of the other. The honest test is which sentence sounds like you: “I want to write this story” or “I want to live in that one.”

How to try the alternative without losing anything

1. Keep NovelAI. Nothing here asks you to cancel, and your stories stay where they are. The docs also let you download every story at once.
2. Play one ready-made world first. A single session answers more than any table.
3. Then upload the book you care about and read the atlas it builds before your first turn. If it has the cast and factions right, the campaign follows.

For the wider field, see Text-Based RPG Games Worth Playing in 2026.

The honest summary

NovelAI in September 2026 is a mature, private, finely controllable writing partner with a strong image generator in the same subscription. Its Lorebook is one of the best memory tools in the category, and its Text Adventure mode is a capable writing mode with game conventions on top. If you are a writer, stay: you are in the right place.

If what you actually want is to step into a finished book and play, the tool you need is a game master that has read it. Start playing free →