AI writing assistance, grammar, and style optimization.
Key Functions
| Function | Description | AI Opportunity |
|---|
| Grammar Check | Errors, punctuation, syntax | Core AI function |
| Style Suggestions | Clarity, conciseness, tone | Adaptive learning |
| AI Writing | Generation, completion, rewriting | Full generation |
| Plagiarism Check | Originality verification | — |
| Tone Detection | Formality, sentiment | Real-time adjustment |
| Vocabulary | Word choice, synonyms | Context-aware |
| Readability | Scores, simplification | Auto-simplify |
| Brand Voice | Custom style rules | Voice enforcement |
| Citations | Reference formatting | Auto-citation |
| Translation | Multi-language support | Real-time |
Core Entities
| Entity | Fields | Volume | Sensitivity |
|---|
| Documents | content, suggestions, history | Very High | Variable |
| Corrections | original, suggestion, action | Very High | Low |
| Style Profiles | rules, preferences | Low | Low |
| Dictionary | custom words, terms | Low | Low |
| Users | preferences, usage | Low | Medium |
| Analytics | error patterns, improvement | High | Low |
Integration Points
| System | Data Flow | Direction |
|---|
| Browser | Extension, web apps | Bi-directional |
| Microsoft Office | Word, Outlook | Bi-directional |
| Google Docs | Real-time suggestions | Bi-directional |
| Slack/Teams | Message checking | Bi-directional |
| Email | Composition assistance | Bi-directional |
| CMS | Content editing | Bi-directional |
Data Retention
| Data Type | Typical Retention | Compliance Driver |
|---|
| Document content | Session only (privacy) | Privacy |
| Corrections | Aggregated/anonymized | Learning |
| User preferences | Until deletion | Personalization |
| Style profiles | Indefinite | Configuration |
Evaluation Criteria
| Criteria | Weight | Notes |
|---|
| Accuracy | High | Suggestion quality |
| AI writing quality | High | Generation capability |
| Integration coverage | High | Where you write |
| Privacy | High | Data handling |
| Brand voice | Medium | Enterprise needs |
| Team features | Medium | Style guide sharing |
| Pricing | Medium | Per-user or usage |
Market Leaders
| Product | Strength | Best For |
|---|
| Grammarly | Accuracy, integration | General writing |
| Writer | Enterprise, brand voice | Teams |
| ProWritingAid | Depth, reports | Authors |
| Hemingway | Readability, simplicity | Clear writing |
| Wordtune | Rewriting, alternatives | Style variation |
| QuillBot | Paraphrasing | Academic |
AI Disruption Potential
| Function | Current State | 2027 Projection |
|---|
| Grammar | Near-perfect | Perfect |
| Style suggestions | Good | Personalized |
| Full generation | Templates + prompts | Voice-matched |
| Translation | Good | Native-quality |
| Tone adjustment | Basic | Real-time adaptation |
| Research assistance | Limited | Integrated |
Build vs Buy: Buy. Writing AI requires massive training data and linguistic expertise. Focus on what you write, not the tools.