AIStoryHub vs Sudowrite
Both promise your voice.
One shows its work.
Sudowrite bundles AI access into a $10–44/month subscription and personalizes through its Story Bible. AIStoryHub is free, runs on your own API key or a free built-in model, and builds your voice from settings you control directly, backed by a published, searchable list of 742 AI clichés it's built to avoid.
At a glance
The short version.
| AIStoryHub | Sudowrite | |
|---|---|---|
| Price | Free forever | $10–44/month |
| AI access | Your own API key, or a free built-in model | Bundled into the subscription |
| Voice approach | Voiceprint: tone, pacing, POV, banned words you set directly | Story Bible personalization |
| Cliché avoidance | 742-entry corpus, published and downloadable | Not published |
| Version history | Full scene/chapter history, instant revert | Not a core feature |
| Community | Public groups, universe forking, community hub | Not a focus |
| Screenplay tools | No | Yes, screenplay conversion |
The details
Where they actually differ.
Pricing and AI access
Sudowrite's cheapest plan is $10/month for 225,000 credits, aimed at hobbyists. Its Professional tier ($22/month, 1,000,000 credits) is the one it recommends for a novel. Max ($44/month, 2,000,000 credits, rollover for a year) is for authors publishing multiple books annually. AI access is bundled into all of them, drawing on a mix of Claude, OpenAI, open-source, and Sudowrite's own proprietary models. AIStoryHub charges nothing at any tier. You either paste in your own API key and pay the provider directly at their published rates (a full chapter with Generate PRO runs about $0.04, a heavy two-hour session about $0.25), or use the free built-in model with no key and no cost to you at all.
Voice and style
This one's genuinely close, and it would be dishonest to claim otherwise. Sudowrite's Write feature "analyzes your characters, tone, and plot arc" and its Story Bible personalizes toward your style. AIStoryHub's Voiceprint does something similar but makes the controls explicit: you set tone, pacing, point of view, and a list of banned words yourself, and Generate PRO reads that configuration before writing a line. The bigger difference is the anti-cliché layer behind it. AIStoryHub publishes the actual list of 742 AI tells it's built to avoid, tagged by category and confidence, searchable and downloadable at aistoryhub.co/corpus. You can audit it yourself. Sudowrite doesn't publish an equivalent list.
Structure and tooling
Sudowrite leans on its Story Bible for outline and continuity, plus dedicated tools for brainstorming, expanding an outline into a draft, dialogue rephrasing, and converting prose to screenplay format. AIStoryHub tracks full scene and chapter version history with instant revert, an @-reference system for keeping characters and locations consistent across a long manuscript, and branch/version history built around the idea that every AI action should be reversible. Neither approach is strictly better; they're built around different manuscript workflows.
Community
AIStoryHub has a public community hub, beta-reader groups with progress tracking, and a public universe gallery you can fork into your own story with one click, inheriting existing characters and lore. Sudowrite doesn't emphasize a community layer in the same way; it's built primarily as a solo writing tool.
Who each one is for
Be honest with yourself.
AIStoryHub fits if
- You want to see and control exactly what's shaping your prose, not trust a black box
- You don't mind pasting in an API key, or you're fine with the free built-in model
- You want scene/chapter structure and version history without a subscription
- You write in public communities or want to fork existing worlds
Sudowrite fits if
- You'd rather pay a flat monthly fee than manage your own API key
- You specifically want Sudowrite's Brainstorm/Expand workflow or its screenplay conversion
- You're not concerned with auditing what a model avoids or why
- You write scripts as well as prose and want that in one tool
Questions
Before you decide.
Is AIStoryHub really free, or is there a catch?
It's free. There's no subscription tier, no credit system, and nothing gated behind a paywall. You either bring your own API key from Anthropic, OpenAI, or Google (and pay that provider directly, usually a few cents per session) or use the free built-in model with no key at all.
Do I need an API key to use AIStoryHub?
No. Sign up and start writing immediately with the free built-in model. Add your own key later in Settings whenever you want a specific model like Claude or GPT-4o.
Does Sudowrite also try to write in my voice?
Yes, and it's a real feature, not marketing. Sudowrite's Write tool and Story Bible personalize toward your style. The difference is mechanism: AIStoryHub's Voiceprint is a set of controls you configure directly (tone, pacing, banned words), and the anti-cliché system it's built against is a published, searchable list you can audit yourself. Sudowrite's personalization isn't published the same way.
What happens to my Sudowrite work if I switch?
Sudowrite exports your manuscript as plain text or docx. Paste it into a new AIStoryHub story and you're working with your existing draft immediately — there's no formal import tool, but there's also nothing to migrate technically since you're not carrying over any account state.
No credit card. No subscription. No catch.