Novelcrafter and AuthorFlows are both browser-based novel-writing platforms, but they're built on opposite bets. Novelcrafter gives you a deep, configurable workshop: a Codex that spans whole series, real collaboration, and no AI of its own, so you connect your own model. AuthorFlows gives you a clean, ready-made studio with the AI already included in a flat $6 subscription, and nothing to configure. Choose Novelcrafter if you write tightly interconnected series, co-write, or want full control over which AI touches your book. Choose AuthorFlows if you want a distraction-free manuscript editor, AI included, and a predictable bill.
Full disclosure: I'm a co-founder of AuthorFlows. That's exactly why this comparison concedes every point where Novelcrafter is the better tool, and there are several.
Novelcrafter's own help center describes it as a writing platform first, one that deliberately avoids tying you to a single AI model. Everything else follows from that choice: you pick the AI provider, you build the Codex, you shape the prompts. Reviewers keep landing on the same comparison. Kindlepreneur's review called it "more of an Adobe Photoshop than a Canva," meaning enormous capability that you have to learn before it pays off.
AuthorFlows made the opposite bet. The AI is included in the subscription and ready in the editor from day one, the project structure is generated for you, and there are far fewer decisions standing between you and your first chapter. The trade-off is real: fewer decisions also means less control.
You start with a 21-day trial, full access, no credit card. You create a book, then start filling the Codex with characters and settings. To use any AI feature, you need an account with a provider such as OpenAI, Anthropic, or OpenRouter, or a local model running through Ollama or LM Studio. You generate an API key there and paste it into Novelcrafter.
This is where many first impressions go wrong. One reviewer testing a 40,000-word manuscript was ready to close the tab 45 minutes in, and the steep setup is the most common complaint across independent reviews. The same reviewers usually agree that once it's configured, few tools match it.
There's no free trial, but AuthorFlows' terms of service give a full refund within eight days of your first payment. Once you're in, you type a premise and the outline generator builds chapters, sections, and character profiles in thirty to sixty seconds. The AI works immediately, with no key or provider account to set up.
Pricing and AI get most of the attention in comparisons like this, but you'll spend most of your time in the editor. Here's what writing an actual manuscript looks like in each.
Novelcrafter organizes a book as acts, chapters, and scenes, and its editor is built around that hierarchy. Plotters tend to love it. Discovery writers who think in one flowing document can find it confining; one reviewer put it simply: if you don't think in scenes, you'll fight the tool.
For formatting, its Format menu covers font, text size, line height, indent, alignment, paragraph spacing, page width, and the style of your scene dividers. Inline, you get bold, italics, underline, strikethrough, and colored highlights. A focus mode hides summaries and sidebars, a typewriter mode is available, and word count, page count, and reading time sit alongside the text. A vertical timeline marks every scene, and reviewers single out revision history, which lets you roll back after experimenting with AI-generated passages.
On long books, Novelcrafter's own help center names the usual causes of lag: having the entire novel open across hundreds of scenes, or hundreds of Codex entries loaded at once. Its recommended fix is to open one act or chapter at a time. Two more practical limits: Novelcrafter needs an internet connection, with offline mode planned but no date given, and it can't format a book for publication, so final layout happens after export in a tool like Atticus or Vellum.
AuthorFlows' manuscript editor paginates as you write, so your chapters look like pages of a book rather than one endless scroll. Select any text and a formatting toolbar appears with bold, italics, underline, strikethrough, highlighting, three heading levels, bulleted and numbered lists, block quotes, alignment, text size, and text color. Word count, reading time, page count, and section count update live at the top of the page, and every chapter in the sidebar shows its own word count.
Four page themes, four page sizes, thirteen fonts, and a dark mode let you set the page up the way you like to read your own work. Focus mode strips the screen down to the page, and everything autosaves. The interface keeps panels to a minimum on purpose, which is why writers who have never used dedicated writing software can open a project and start typing without a tutorial.
Chapters break into sections, which keeps a long manuscript easy to move around in, whatever the genre or length. When the draft is done, you export to Word, PDF, plain text, Markdown, or HTML. Like Novelcrafter, AuthorFlows doesn't produce print-ready book formatting, so final layout still happens in a dedicated formatting tool.
The practical difference: Novelcrafter gives you more ways to see and slice a long book, especially through its scene structure and timeline. AuthorFlows gives you a cleaner page that looks like a book from the first sentence, with far less on screen competing for your attention.
Novelcrafter's sticker prices run from $4 to $20 a month, and any AI use is billed separately by the provider you connect. AuthorFlows costs $6 a month or $57 a year, with the AI included and no credit system. Which one is cheaper depends entirely on how you use AI.
Novelcrafter wins. The Scribe plan at $4 a month gives you the Codex, planning, and unlimited books with no AI. AuthorFlows costs $6 whether or not you use its AI.
Novelcrafter's Hobbyist plan costs $8, and its own help docs point to free models on OpenRouter and free local models, so your AI bill can genuinely be zero. The catch is that free and local models vary widely in quality, and local ones depend on how powerful your computer is. AuthorFlows is $6 with its AI included and nothing to set up. Close to a tie on price; the difference is setup and model choice.
This is where the gap opens. On Hobbyist or Artisan ($8 to $14) plus a pay-as-you-go provider, independent reviews and Reddit users report API spending of roughly $10 to $50 a month for heavier drafting, putting the real total somewhere between $18 and $64. AuthorFlows stays at $6. To be fair to Novelcrafter, it also supports flat-rate providers such as Featherless, Infermatic, and Arli AI if the unpredictability bothers you.
Novelcrafter wins, and it isn't close. The Specialist plan ($20) lets you invite collaborators and manage teams, and anyone who only needs to view your work can do it with a free account. AuthorFlows has no collaboration feature today; sharing a project means sharing a login.
On annual billing, Novelcrafter takes two months off, which works out to $80 a year for Hobbyist and $140 for Artisan before any AI costs. AuthorFlows is $57 a year with AI included.
Novelcrafter's Codex is a wiki for your story: characters, locations, objects, and lore, with the ability to track how a character changes over time. It can be shared across a series or a whole universe, and it feeds context to the AI whenever you generate. We've said this in our other comparisons and it still holds: for cross-book continuity, the Codex is the strongest purpose-built system in this category. The cost is time. Every entry is written by hand, and Reddit users often describe it as powerful but slow to fill in.
AuthorFlows goes the other way. One premise produces chapters broken into sections with a written beginning, plus character profiles with backstory, appearance, and personality details, in a single pass. Each book lives in its own project, and because projects are unlimited, series work book by book: build the master story in one project, then continue it in the next. The same unlimited projects let you run several series side by side instead of betting everything on one. The honest limit is that characters and world details don't sync between projects automatically, so you carry them forward yourself. For a standalone novel, or a series you manage book by book, AuthorFlows gets you writing faster. For a heavily interconnected universe where details must stay in sync across many books, Novelcrafter's shared Codex is the better home.
Both tools use a slash command in the editor, for different jobs. In Novelcrafter, "/" adds a scene beat, a short instruction the AI turns into prose using your Codex. In AuthorFlows, "/" triggers Continue Writing, and selecting text opens a separate menu to Rephrase, Expand, Summarize, or Improve it. The AuthorFlows writing assistant page covers how that works in detail.
Only in Novelcrafter: Workshop Chat (Artisan and up) for brainstorming against your Codex and scenes, a different model for each task, fully customizable prompts, and content limits set only by the model you choose, which matters to many romance and adult-fiction writers.
Only in AuthorFlows: the AI Story Analyzer, which scores your manuscript overall and across characters, plot, and world-building, tags weaknesses by severity, and saves every past analysis so you can watch the score move as you revise. Novelcrafter's review tools are basic on its lower tiers, with advanced review still listed as planned. AuthorFlows also tracks a daily word goal, writing streaks, and a year-long activity heatmap, which Novelcrafter doesn't offer.
In Novelcrafter, text you send to the AI goes to whichever provider you connected, under that provider's terms. The upside is that the choice is yours. Run a local model and the AI generation happens on your own computer, which is arguably the most private AI setup any writing tool offers, ours included.
In AuthorFlows, nothing goes to an AI model unless you trigger an AI action yourself. When you do, the relevant text is routed through OpenRouter to the model that generates the response, and AuthorFlows' providers are contractually barred from training on your content, as its terms of service spell out. The upside is that there's nothing to configure. The trade-off is that you're trusting AuthorFlows' setup rather than choosing your own provider.
We get asked why we didn't launch with bring-your-own-key, and the honest answer is safety. Most writers don't want to manage API keys, watch token bills, or work out which provider's terms apply to their unpublished manuscript. Including the AI in the subscription meant one flat price and one clear set of rules for where the writing goes. That said, we know some writers want the control Novelcrafter gives them, so we're working on API integration that lets AuthorFlows users connect their own key as an option, alongside the AI already included in their plan rather than instead of it.
Yassine Rhouati, co-founder of AuthorFlows
If you're weighing more than these two, our AuthorFlows vs Sudowrite and AuthorFlows vs Scrivener comparisons follow the same approach, and the 2026 roundup of AI writing tools covers twenty options side by side.
No. There's no free plan, but there's a 21-day trial with full access and no credit card. Paid plans start at $4 a month.
No. It uses bring-your-own-key from the $8 Hobbyist plan up, so you connect a provider yourself. That AI can cost nothing if you use free OpenRouter models or run a local model on your own computer.
Yes. The $4 Scribe plan has no AI at all, and the Codex, planning, and writing tools all work without it.
Novelcrafter, if your books share many characters and a lot of lore, because its Codex is shared across a series automatically. AuthorFlows handles series as one project per book, with unlimited projects, which works well if you're happy to carry key details forward yourself.
It depends on your AI use. Without AI, Novelcrafter's $4 plan is cheaper. With regular AI drafting on premium models, AuthorFlows at $6 with AI included usually costs less than a Novelcrafter plan plus a provider bill, unless you stick to free or local models.
Only manually. Novelcrafter lets you export your manuscript, but AuthorFlows has no import feature today, so you'd paste your chapters in. Codex entries don't transfer.
If you're writing a standalone novel and want AI working from the first sentence, put your premise into the AuthorFlows outline generator and see what comes back. If you're building a series with a co-author, Novelcrafter's 21-day trial is the smarter first step.
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