Grammarly vs Sudowrite
- ✦ Grammar checking
- ✦ Plagiarism detection
- ✦ Tone suggestions
- ✦ Story Engine
- ✦ Canvas
- ✦ Describe AI
Grammarly and Sudowrite are both AI Writing Tools tools. Grammarly starts at $30/mo, Sudowrite at $19/mo. Compare features, pricing, and ratings below to find the best fit for your team.
When to Choose Grammarly vs Sudowrite
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
Tone suggestions catch aggressive or casual phrasing in the Browser extension, keeping outbound emails on-voice without review cycles that eat 4+ hours daily.
Plagiarism detection scans 16+ billion sources in under 3 seconds per document, catching unattributed language before it reaches external stakeholders.
Style improvements catch passive voice and unclear modifiers in spec documents, cutting engineering scope clarification requests by 35% and compressing feedback loops.
The Team style guide pushes real-time corrections into Google Docs, team chat, and email clients - cutting first-pass copy editing for 60-70% of contributor submissions.
Story Engine produces 3-5 directional prompts tailored to your genre and tone when mid-manuscript momentum stops. Ideation drops from hours to minutes.
Pricing Comparison & PlansHigh· Verified May 30, 2026
Grammarly Plans
Free tier available
Free
FreeBest for: Ideal for individuals needing basic grammar and spelling checks to improve their writing.
- ✓Basic grammar and spelling checks
- ✓Limited tone suggestions
- ✓Basic clarity feedback
- ✓100 AI prompts per month
Pro
$30/user/moBest for: individual users seeking advanced writing feedback, style suggestions, and plagiarism detection.
- ✓Advanced grammar and style suggestions
- ✓Tone detection
- ✓Plagiarism detection
- ✓Word choice recommendations
- ✓Formatting assistance
Business
$15/user/moBest for: Suitable for small to medium teams requiring centralized billing, admin controls, and team-specific style guides.
- ✓Centralized billing
- ✓Admin controls
- ✓Team analytics
- ✓Style guides
- ✓Brand tone profiles
Enterprise
Contact SalesBest for: Designed for large organizations needing advanced security, dedicated support, and custom integrations.
- ✓Customized pricing
- ✓Volume discounts
- ✓Negotiated pricing
Sudowrite Plans
Paid plans only
Hobby & Student
$19/moBest for: 225,000 credits/month, Perfect for fun or school writing, Free trial available
- ✓225,000 credits per month
- ✓AI-powered Story Bible
- ✓Write, Rewrite, and Describe tools
- ✓Brainstorming features
- ✓Canvas visual plotting tool
Professional
$29/moBest for: 1,000,000 credits/month, Best for novels & screenplays, Free trial available
- ✓1,000,000 credits per month
- ✓AI-powered Story Bible
- ✓Write, Rewrite, and Describe tools
- ✓Brainstorming features
- ✓Canvas visual plotting tool
Max
$59/moBest for: 2,000,000 credits/month, Unused credits rollover 12 months
- ✓2,000,000 credits per month
- ✓Unused credits rollover for up to 12 months
- ✓AI-powered Story Bible
- ✓Write, Rewrite, and Describe tools
- ✓Brainstorming features
Capability Breakdown
5 differences found across 20 standardized features
- •Grammar checking
- •Plagiarism detection
- •Tone suggestions
- •Style improvements
- •Browser extension
- •MS Office plugin
- •Mobile app
- •Team style guide
- •Story Engine
- •Canvas
- •Describe AI
- •Brainstorm
- •Rewrite
- •First Draft
- •Poem generator
- •Describe tool
- •Feedback mode
- •Characters
- •World building
- •Outline generator
Strengths & Limitations
Evaluative strengths and weaknesses: not feature lists
- +Integrates seamlessly across browsers, desktop apps, and mobile
- +Real-time tone detection adjusts writing for specific audiences
- +Comprehensive free version covers core grammar and spelling needs
- +Style guide feature ensures brand consistency for business teams
- +Plagiarism checker compares text against billions of web pages
- −Suggestions can be overly prescriptive, stifling creative or nuanced writing styles
- −Advanced features (plagiarism, style guides) are locked behind a pricey Pro plan
- −Can occasionally misinterpret context, offering grammatically correct but nonsensical changes
- −Offline functionality is limited; requires an internet connection for full analysis
- −Generative AI features lag behind dedicated tools like Jasper or Copy.ai
- +Story Engine generates a full novel outline from a simple idea
- +Canvas feature for visual brainstorming and mind-mapping plots
- +Specialized 'Show, not Tell' and 'Pacing' analysis tools
- +Rewrite tool offers multiple thematic variations (e.g., more inner conflict)
- +Integrates multiple AI models (GPT-4, Claude) for diverse outputs
- −Steep learning curve due to the sheer number of specialized features
- −AI-generated prose can sometimes feel generic and require heavy editing
- −Credit-based system can be confusing and costly for heavy users
- −Primarily focused on long-form fiction; less useful for short stories or scripts
- −Mobile experience is limited; best used on a desktop or laptop
At a Glance
Recent Price History
Grammarly removed the "Premium" plan
Plan removed · May 30, 2026
Grammarly updated "Business" from $15/mo to Custom
Price change · May 30, 2026
Grammarly added a new "Pro" plan at $30/user/mo
Plan added · May 30, 2026
Grammarly removed the "Pro" plan
Plan removed · May 21, 2026
Grammarly added a new "Business" plan at $15/mo
Plan added · May 21, 2026
Sudowrite raised "Max" from $44 to $59/mo (34%)
Price change · May 21, 2026
Sudowrite raised "Professional" from $22 to $29/mo (32%)
Price change · May 21, 2026
Sudowrite raised "Hobby & Student" from $10 to $19/mo (90%)
Price change · May 21, 2026
Frequently Asked Questions
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Sources & Data Trail · Sudowrite
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- 2.Official Website·Official vendor website
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