Compared on facts
NSFW AI story generators, compared on what can be checked
No scores and no winner. Five tools, five columns, and every figure read from the tool’s own public pages in August 2026 — including ours, which is one row among the others.
How this list was made
- A tool is listed only where its own public pages state the facts. JanitorAI is absent for that reason: its pricing appears only in third-party write-ups which disagree with each other.
- Nothing here rates quality. Prose is a matter of taste, and a page on our own site is the wrong place to score it.
- Prices and context sizes move. If a figure below disagrees with the vendor’s page, the vendor is right and this page is stale.
| Tool | Price | Model | How memory reaches the model | Form | Memory sized by plan |
|---|---|---|---|---|---|
| EroticWriter this site This site | $0 — no tiers | A hosted uncensored 24B model | Lorebook entries chosen by trigger word; the whole world on a story’s opening beat | Manuscript | No — there is one plan |
| NovelAI docs.novelai.net | $10 / $15 / $25 · free tier is a 50-generation trial | Their own | Lorebook entries carry activation keys; a Context Viewer explains each inclusion | Editor | Yes — Scroll advertises “a larger Context Size”, Opus “the largest token context size” |
| Sudowrite sudowrite.com, docs.sudowrite.com | $10 / $22 / $44 · free trial only | Their own (Muse, Ballad) plus Claude, GPT, Gemini and others | Story Bible — on a draft “the AI reads all of it”, rather than selecting by keyword | Manuscript | Not by tier |
| AI Dungeon help.aidungeon.com | Free tier · $14.99 / $29.99 / $49.99 / $99.99 | Their own plus third-party | A Memory Bank whose size is part of the plan | Turn-based adventure | Yes, in numbers — 4k to 32k context, 25 to 800 memories |
| SillyTavern docs.sillytavern.app | $0 — AGPL-3.0, self-hosted | None included; you connect your own | World Info inserts an entry “when keywords associated with the entries are present” | Chat | No plan at all |
Checked August 2026.
At two of these, memory is the thing you are buying
NovelAI sells context size by tier, in their own words: Scroll offers “a larger Context Size”, Opus “the largest token context size”. AI Dungeon publishes it as numbers — a free account holds 25 memories and reads 4k tokens of context, the top plan holds 800 and reads 32k.
That is a legitimate way to build a business, and it is worth knowing before you start a novel inside one. How much your world is allowed to remember is what the higher tier is for.
EroticWriter has one plan, so there is nothing to size. Every account gets the same memory, and the editor shows which character bibles and world facts went into each passage and which word pulled them there.
Try the one that costs nothing
No tiers, no credit packs, no card. You must be 18 or over to write here.