What They Did
Grammarly was the dominant AI-powered writing assistant with over 30 million daily active users. It offered grammar checking, tone detection, and writing suggestions through browser extensions, desktop apps, and integrations. Revenue grew from around $500M to an estimated $650M, making it one of the most successful SaaS tools in the writing category.
How LLMs Killed Them
ChatGPT and other general-purpose LLMs cannibalized Grammarly's core value proposition. Why pay for grammar and writing suggestions when a free chatbot can rewrite entire paragraphs, adjust tone, and generate content from scratch? Revenue growth decelerated sharply from 43% to 12% year-over-year, and the user base remained flat since 2020 despite massive growth in overall AI usage.
Timeline
- 2022: Revenue growth at 43% YoY, reaching approximately $500M.
- 2023: Growth decelerated sharply to around 12% YoY as ChatGPT adoption surged.
- February 2024: Laid off 230 employees (roughly 5% of workforce).
- 2024: CEO, CTO, and CPO all replaced as company pivoted strategy.
- 2024: Launched GrammarlyGO, an AI writing assistant designed to compete directly with ChatGPT's writing capabilities.
- December 2024: Acquired Coda, the collaborative document platform, to expand beyond writing assistance.
- May 2025: Raised $1 billion in new funding to finance its pivot toward a broader AI productivity platform.
By the Numbers
- 30M daily active users, flat since 2020
- Revenue growth dropped from 43% to 12% YoY
- 230 employees laid off (5% of workforce)
- $1B raised in May 2025 to fund strategic pivot
- All three C-suite leaders (CEO, CTO, CPO) replaced