Sudowrite vs Wordtune
A 2026 side-by-side comparison of Sudowrite and Wordtune — pricing, key features, platforms, API access, and the trade-offs of each, based on data collected from their official sites.

Sudowrite
The AI writing partner built for fiction writers to draft, describe, rewrite, and finish novels in their own voice.

Wordtune
Express yourself with confidence and take your writing productivity to new heights with AI.
Tagline
The AI writing partner built for fiction writers to draft, describe, rewrite, and finish novels in their own voice.
Express yourself with confidence and take your writing productivity to new heights with AI.
Pricing
Rating
Platforms
API
Open source
Description
Sudowrite is an AI writing partner designed specifically for novelists and storytellers. Driven by Muse 1.5, its proprietary fiction-trained AI model, Sudowrite assists with drafting, pacing, visual story mapping, and character continuity. Key features like First Draft, Story Bible, and Describe help writers expand their narratives, overcome blockages, and build rich sensory descriptions while retaining their unique tone.
Wordtune is an AI-powered writing assistant that helps you rewrite, paraphrase, and refine your text for clarity, impact, and authenticity. Developed by AI21 Labs, it offers advanced tools such as grammar checking, summarization, proofreading, and vocabulary enhancement, allowing you to easily adjust writing tones, translate text, and produce error-free content.
Key features
- Muse 1.5 fiction-trained AI model
- Story Bible step-by-step drafting pipeline
- Write autocomplete suggestions
- Describe tool for sensory details
- Expand tool to build out scenes
- Rewrite revision tool
- Chapter Continuity and Series Folder
- Unfiltered Muse for adult and smut scenes
- Canvas visual planning board
- Chat grounded in Story Bible info
- Sentence and paragraph rewriting
- Casual and formal tone adjustments
- Advanced AI proofreading and grammar checking
- Document and text summarization
- Text expansion and shortening
- Multi-language translation to English
- Vocabulary enhancements
- SAML SSO and centralized billing for teams
- Google Docs and Wordtune Editor integrations
Pros
- Offers a free trial to let users test out features before committing to a paid plan.
- Guarantees that user writing is not used to train their AI models.
- Claims no rights or ownership over what users write or generate in the tool.
- Enables writing in almost any language, matching suggestions to the user's language.
- Allows unfiltered writing (adult/smut) without AI refusal or prompt fading.
- Keeps characters, world, and plot consistent with the built-in Story Bible.
- Users retain project access to read and edit existing work even after cancelling a paid subscription.
- Features like Describe and Expand turn flat, sparse sentences into sensory-rich narrative.
- Offers a completely free basic plan with core rewrite and spelling corrections.
- Translates Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French, and Portuguese into English.
- Allows switching between casual and formal writing tones with a single click.
- Checks at least 5 credible sources before presenting factual metrics and recommendations.
- Provides official web extensions for both Google Chrome and Microsoft Edge browsers.
- Available as a dedicated mobile application for iOS users.
- Offers a 30% discount on both monthly and annual plans for eligible students and educators.
- Supports safe team onboarding with SAML SSO and centralized administrative billing.
Cons
- Requires a credit card registration to access the initial free trial.
- Requires an ongoing paid subscription to access any AI-based features.
- May fall back on English translation when using features other than Write in foreign languages.
- No public API or developer integration options are listed on the site.
- No active native mobile applications are currently offered (though mobile hiring is shown).
- Paid premium subscriptions are completely non-refundable.
- Free accounts are strictly limited to 10 rewrites and AI suggestions per day.
- Tone-changing features (casual vs. formal) are missing entirely on free plans.
- The unique Spices feature is only available in Google Docs and the online Wordtune Editor.
- The free trial lasts only 3 days and requires users to enter payment details upfront.
Pricing plans
- Hobby & StudentUSD10/month
- • Perfect for people who write for fun or for school
- • Start Free Trial
- • No credit card, cancel anytime
- • Use the #1 Creative Writing AI
- ProfessionalUSD22/month
- • Good for longer works, like a novel or screenplay
- • Get Feedback on your work
- • Start Free Trial
- • No credit card, cancel anytime
- MaxUSD44/month
- • For authors who publish multiple times a year
- • Unused credits rollover for 12 months
- • Start Free Trial
- • No credit card, cancel anytime
- Enterprise—
- • Drop us a line
- 30-Minute Personal Setup SessionUSD49/one_time
- • Enjoy a private one-on-one session with Sudowrite staff
- • Tailored to your needs to help you get up to speed quickly
- • Complimentary Personal Setup Session offered on Max plan must be used within 30 days of first payment
- BasicUSD0
- • Spelling corrections
- • Grammar checks
- • AI generations
- AdvancedUSD4.89/month
- • AI recommendations
- • Spelling corrections
- • Grammar checks
- UnlimitedUSD6.99/month
- • Vocabulary enhancements
- • Clarity improvements
- • Fluency increases
- • Premium support
Which one should you pick?
- Choose Sudowrite if you need Muse 1.5 fiction-trained AI model.
- Choose Wordtune if you need Sentence and paragraph rewriting.
- On budget: Sudowrite is freemium, Wordtune is freemium.