Manuscript studio first—AI when you choose, not when credits run out
Sudowrite puts AI generation at the centre. Blocwrite is for authors who draft the book themselves and want chapters, codex, reader feedback, and export in one workspace—with Chapter Chat and Blocs only if you connect your own OpenRouter key.
Why authors pick Blocwrite over Sudowrite
Sudowrite shines when you want Muse, expand, and brainstorm out of the box—fast AI-first drafting with bundled credits. That works until long novels burn through packs or you want tighter control over what lands in the manuscript.
Blocwrite treats AI as optional infrastructure: preview-first Blocs (type backslash in the draft), scene-aware Chapter Chat, and proofread—all via your own OpenRouter key. The studio itself—chapters, codex, checkpoints, beta reader links, import/export—works fully with AI off.
| Blocwrite | Novlr | Sudowrite | Novelcrafter | |
|---|---|---|---|---|
| Core focus | Manuscript studio — chapters, codex, reader links, export in one flow | Distraction-free drafting and writing habits | AI-first fiction generation and story bible | Deep codex and configurable BYOK AI |
| AI | Optional — OpenRouter, your models, your spend | Limited AI on higher tiers | Bundled Muse and credit packs | BYOK — bring your own models |
| Entry price | 14-day free trial, then £12.99/month (flat plan) | Tiered plans; key features often on higher tiers | Subscription plus generation-credit economics | Subscription plus model usage costs |
| Cost control | AI off by default and fully usable without generation spend | Good drafting value; less AI flexibility | Great generation, but credit burn can climb on long drafts | High control, but setup and spend tracking are on you |
| Codex / story bible | Characters, places, lore beside the active chapter | Notes and world-building sidebar | Story Bible inside AI workflows | Advanced codex with deep linking |
| Comments + checkpoints | Private comments and named draft checkpoints in the writing room | Drafting focused; less in-flow checkpointing | Generation tools first; less manuscript version scaffolding | Strong codex context; workflow depends on your setup |
| Beta readers | Share links — annotate without a Blocwrite account | Snippet sharing (plan-dependent) | Not a primary workflow | Limited sharing options |
| Scene assists | Blocs — type \, preview before accept | — | Generate and expand prose | AI pipelines tied to codex |
| Export | EPUB and Word from the novel menu | ePub on Pro | Export via external tools | Export and publishing helpers |
| Onboarding speed | Open desk, create novel, write immediately (tour + guide included) | Quick to start drafting | Fast AI-first start | More initial setup before flow |
| Best for | Authors who want one room from draft through reader feedback | Clean UX and writing streaks | AI-heavy drafting and expansion | Series writers who enjoy deep setup |
Pricing and feature notes are directional snapshots for writer decision-making, not official vendor quotes. See full feature walkthrough.
Choose Blocwrite if you want
- Your prose in control—AI suggests, you accept or discard
- No bundled generation credits or surprise usage bills
- Beta reader share links and export as core workflow, not add-ons
- Codex beside the draft for voice and continuity
- One subscription for the full studio
Stay on Sudowrite if
- Maximum out-of-the-box AI generation is your primary workflow
- You are happy with credit-based economics for Muse and expand
- Manuscript structure and reader feedback are secondary
Try Blocwrite free for 14 days — then £12.99/month. Start trial · AI novel writing · Novlr alternative