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AI Dungeon vs Sudowrite

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan
Sudowrite — $10/mo vs $14.99/mo for AI Dungeon
Free plan
Only AI Dungeon (Sudowrite has paid plans only)
Best fit
AI Dungeon: Long-running solo roleplay campaigns where world state has to survive dozens of sessions · Sudowrite: Novelists drafting long fiction who need continuity across many chapters
Platforms
AI Dungeon: Web, iOS, Android · Sudowrite: Web
Trust score
About even — AI Dungeon 91, Sudowrite 92

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

AI DungeonText adventure engine where the AI improvises every sceneSudowriteLong-form fiction drafting with a story bible attached

Side by side

FactAI DungeonSudowrite
CategoryStorytelling & FictionStorytelling & Fiction
Pricing modelFreemiumPaid
Starts at$14.99/mo$10/mo
Trust score91 / 10092 / 100
PlatformsWeb, iOS, AndroidWeb
CompanyLatitude Inc.Sudowrite
Launched20192020
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

AI Dungeon

Still the deepest AI text-adventure product there is, with seven years of scenario library behind it, and the only one where memory and world-state tooling is the actual product. It is entertainment, not a writing assistant — do not buy it expecting to finish a manuscript.

Pros

  • Memory, world info and scenario tooling are far more developed than in general chatbots used for roleplay
  • Multiple model choices per tier, including newer models added through 2026
  • Native iOS and Android apps, not just a mobile web wrapper
  • Large public scenario library gives an immediate starting point

Cons

  • Five-tier ladder from $14.99 to $99.99 is steep, and context length is the thing being sold at every rung
  • Credits do double duty for images and for extra context, so heavy sessions drain them quickly
  • No API, so scenarios cannot be driven from outside the platform
  • The service has changed content and moderation policy sharply in the past, which still colours community trust

Sudowrite

The only writing tool built around a novel rather than a document, and the story bible is why people stay — but you are renting credits, and the cheap tier runs dry mid-chapter.

Pros

  • Story bible holds characters and plot consistent across a full manuscript
  • Muse is tuned for narrative rather than general-purpose output
  • Max rolls unused credits forward for twelve months
  • Trial needs no credit card

Cons

  • No free tier — when credits stop, the manuscript stops
  • 225,000 credits on the $10 plan is thin for a full-length draft
  • Rollover exists only on the $44 Max plan
  • Web-only, with no offline or desktop editor

Which one fits

Choose AI Dungeon if you need

  • Long-running solo roleplay campaigns where world state has to survive dozens of sessions
  • Players who want to author and share scenarios rather than only consume them
  • Anyone curious how far a story engine can go without authored branches

Choose Sudowrite if you need

  • Novelists drafting long fiction who need continuity across many chapters
  • Writers who want targeted moves — expand, describe, rewrite — instead of a chat window
  • Anyone comparing a fiction-tuned model against general-purpose assistants

AI Dungeon vs Sudowrite: the questions people ask

Is AI Dungeon cheaper than Sudowrite?

On published entry prices, Sudowrite starts lower — $10/mo against $14.99/mo for AI Dungeon. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does AI Dungeon or Sudowrite have a free tier?

AI Dungeon has a free tier; Sudowrite has paid plans only.

More comparisons

Browse all Storytelling & Fiction →