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Moonbeam 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. Moonbeam starts at $49, Sudowrite at $10. Only Moonbeam has a free tier.

MoonbeamLong-form writing editor with outline wizard and saved voicesSudowriteLong-form fiction drafting with a story bible attached

Side by side

FactMoonbeamSudowrite
CategoryLong-form & Blog ContentStorytelling & Fiction
Pricing modelFreemiumPaid
Starts at$49 month$10 month
Public APINoNo
PlatformsWeb, Chrome ExtWeb
CompanyMoonbeamSudowrite
Launched20222020
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Moonbeam

The outline-first Wizard is the one thing here you cannot trivially reproduce by prompting ChatGPT and pasting into a doc. At $49/month from a one-person operation, that has to matter to you a lot.

Pros

  • the Wizard produces a workable outline from messy notes, not just a headline list
  • custom style generator is reusable across documents
  • flat price with no word counts or credit metering
  • 30-day money-back guarantee on paid plans

Cons

  • priced level with funded competitors while being founder-run
  • no API and no publishing pipeline into a CMS
  • no built-in keyword research or SERP analysis
  • very little public information about roadmap or team size

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 Moonbeam if you need

  • bloggers who stall at structure rather than at prose
  • writers keeping one voice consistent across dozens of posts
  • newsletter and essay drafting where organisation beats raw speed

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

More comparisons

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