Grammarly, Hemingway & ProWritingAid

AI Writing Assistants: Improving Your Everyday Writing

The best AI writing tools don't just generate content — they make you a better writer while you work. This lesson covers the tools that integrate into your writing environment to improve clarity, catch errors, suggest better phrasing, and speed up everything you write.

The Writing Assistant Landscape

Grammar and style checkers with AI: Grammarly, ProWritingAid — catch errors, suggest improvements, analyze style

AI-powered editors: Hemingway Editor, LanguageTool — readability and clarity focus

General AI in writing context: Google Docs AI, Microsoft Copilot in Word, Notion AI — AI built into your existing writing environment

Specialized writing tools: Sudowrite (fiction writing), Wordtune (rephrase suggestions), Quillbot (paraphrasing)

Grammarly: The Professional Standard

Grammarly is the most widely adopted AI writing assistant. It integrates directly into your browser, email client, Google Docs, Word, and most writing environments.

What Grammarly Does Well

Real-time corrections: Grammar, spelling, punctuation caught as you type — not after you finish.

Clarity suggestions: "This sentence is hard to read. Try: [clearer version]." Grammarly rewrites complex or convoluted sentences.

Tone detection: Shows you how your writing might come across (confident, friendly, formal, concerned) so you can adjust before sending.

Goal setting: Tell Grammarly your intent (inform, persuade, describe), audience (general, expert, academic), and formality — it adjusts suggestions accordingly.

Grammarly Business: Lets teams share brand style guides, so Grammarly enforces your terminology and voice preferences automatically.

GrammarlyGO: The generative AI layer — full rewrites, tone adjustments, and draft generation from within any writing context.

When to Use Grammarly

• Email, Slack, and casual writing where you want always-on error checking
• Professional documents where a typo is embarrassing
• Non-native English speakers who want a confidence layer
• Teams wanting consistent writing quality without manual editing

Grammarly Limitations

It over-suggests. Grammarly flags stylistic choices as "errors" — passive voice it doesn't like, sentence fragments that are intentional, unconventional but correct constructions. You need to develop judgment for which suggestions to accept.

Pricing: Free (basic), Premium ($12/month), Business ($15/user/month)

Wordtune: Rephrase Without Losing Meaning

Wordtune focuses on a single powerful feature: rephrase a sentence while keeping the meaning. It offers multiple alternatives in different tones and lengths.

How Wordtune Works

1. Highlight a sentence in your document
2. Click Wordtune
3. See 5-10 rephrased alternatives instantly

Alternatives are sorted by tone: casual, formal, shorter, longer.

Best Uses

• When you've written something but it doesn't sound right
• Eliminating awkward phrasing without starting from scratch
• Adjusting formality without rewriting
• Breaking writing paralysis when you know what you want to say but can't find the words

Example: Original: "Due to the fact that our metrics indicated suboptimal performance, we subsequently decided to pursue an alternative strategic direction."

Wordtune options:

• "Because our metrics showed poor performance, we changed strategy."
• "After seeing our metrics fall short, we shifted our approach."
• "Our underperforming metrics prompted a strategy change."

Wordtune is particularly useful for non-native speakers and for anyone who writes fast rough drafts and needs to polish.

Hemingway Editor: Clarity and Readability

The Hemingway Editor (hemingwayapp.com) doesn't catch grammar errors — it analyzes readability.

What It Checks

• Grade level score — Targets Grade 9 or lower for general audiences
• Passive voice — Highlighted in green; Hemingway prefers active
• Adverbs — Flagged for potential removal
• Complex sentences — Highlighted yellow (hard to read) or red (very hard to read)
• Complex words — Suggests simpler alternatives

How to Use It

Paste your draft into Hemingway. Read the highlights. Rewrite the red sentences first (they're genuinely too complex). Yellow sentences may be fine — use judgment.

The goal isn't to hit a specific grade level. The goal is to identify places where complexity is getting in the way of the message.

Best for: Blog posts, marketing copy, executive communications, any writing where clear, direct prose matters

AI in Your Existing Writing Environment

Google Docs AI (Gemini in Docs)

Google Workspace users with Gemini included get AI directly in Google Docs:

• "Help me write" — draft from a prompt
• "Refine" — rewrite selected text for clarity, tone, length
• Summarize document
• Proofread suggestions

Best for: Workspace users who want AI assistance without switching apps

Microsoft Copilot in Word

Available with Microsoft 365 Copilot license:

• Draft documents from prompts
• Summarize long documents
• Rewrite sections for different audiences
• Catch tone issues

Best for: Organizations on Microsoft 365 that want to enable AI without new tools

Notion AI

Notion AI (built into your Notion workspace):

• "Improve writing" on any block
• "Make it shorter" / "Make it longer"
• "Change tone to professional/casual/direct"
• Generate text from a brief prompt
• Summarize long documents

Best for: Teams already in Notion for documentation and notes

Choosing a Writing Assistant

For everyday error catching and polish: Grammarly Premium — install it, leave it on

For rephrasing and style alternatives: Wordtune — reach for it when your sentences feel stuck

For readability on public-facing content: Hemingway — run your drafts through it before publishing

For document-level AI assistance: Whatever's built into your primary writing tool (Google Docs, Notion, Word)

These tools are complementary, not competing. Many professionals use Grammarly always-on and call on Wordtune when rephrasing is needed.

AI Writing Assistance vs. AI Content Generation

Writing assistants improve what you've written. Content generators create from scratch. Both are valuable but different:

	Writing Assistants	Content Generators
Input	Your draft	Your prompt
Output	Improved version of your writing	New content
Your role	Author who needs help	Editor who needs a starting point
Best for	Polishing, fixing, clarifying	Drafting, brainstorming, producing at scale

A complete AI writing workflow combines both: use ChatGPT or Claude to generate a first draft, then use Grammarly to catch errors and Wordtune to polish the phrasing.

Next lesson: AI for SEO — tools and strategies for search engine optimized content.