Writing assistant. Outclassed by general-purpose AI.
Grammarly built a $13B valuation on grammar checking and writing improvement. But ChatGPT, Claude, and Gemini can do everything Grammarly does — plus rewrite entire documents, change tone, translate, summarize, and generate content from scratch. Grammarly is a spell-checker competing with AI assistants. They've tried to pivot to an 'AI writing partner' but they're outgunned by foundation model companies with 100x the R&D budget. Recent internal valuation reportedly dropped to ~$7B.
General-purpose LLMs can rewrite, improve, and proofread text as well as Grammarly — while also doing everything else. The single-purpose tool loses to the general-purpose AI.
$13B valuation, 30M daily active users
Launches GrammarlyGO (AI features), adoption lukewarm
Users shift to ChatGPT/Claude for writing help
Internal valuation reportedly ~$7B, growth slowing
Valuation drops to ~$4B; browser extension installs declining as AI-native writing takes over
Use general-purpose AI for writing improvement instead of a dedicated grammar checker. LLMs don't just fix errors — they can rewrite for clarity, adjust tone, simplify complex language, and transform content for different audiences.
Write your draft without worrying about perfection
Paste into Claude or ChatGPT and ask for specific improvements
Specify what you want: fix grammar only, improve clarity, change tone, simplify
Review the suggestions — accept what works, reject what changes your intended meaning
For formal documents: ask the AI to check for consistency in style, terminology, and formatting
Keep a personal style guide prompt that you reuse across editing sessions
Edit this text for grammar, clarity, and conciseness. Preserve my voice and meaning — only fix actual issues, don't rewrite unnecessarily. Briefly explain each significant change. "{{text}}"
Rewrite this email to sound more [professional/casual/empathetic/confident]. Keep the same information and key points but adjust the tone throughout. Original: "{{email}}"
Simplify this text to an 8th-grade reading level without losing the key information. Replace jargon with plain language. Break long sentences into shorter ones. Keep technical terms only where no simpler alternative exists. "{{text}}"