Grammarly
Grammar, tone and generative rewriting across browser, desktop and mobile.
Full Grammarly record →Head to head
Grammarly vs DeepSeek
Grammarly (Grammarly) and DeepSeek (DeepSeek) both sit in Writing. DeepSeek is the cheaper entry point at Pay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified.. DeepSeek shipped more tracked changes in the last 30 days (11 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Grammarly Grammarly | DeepSeek DeepSeek |
|---|---|---|
| Segment | Writing | Writing |
| Version | Pro | DeepSeek-V4.1-Flash-1017 |
| Entry cost | Free tier · from $12/mo | Pay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified. |
| Pricing tiers | Free free · Pro $12 · Enterprise free | Pay-as-you-go API free |
| Model stack | Grammarly AI · Grammarly AI Assistant · Grammarly ML · Grammarly Proprietary AI · Grammarly proprietary ML/AI · In-house NLP models · Undisclosed frontier LLM | deepseek-flash · DeepSeek-R1 · DeepSeek-V3.2 · deepseek-v4-flash · DeepSeek-V4-Flash-0731 · DeepSeek-V4-Flash-Vision-Exp · DeepSeek-V4-Pro · DeepSeek-V4-Pro-0813 · DeepSeek-V4.1-Flash · DeepSeek-V4.1-Flash-1017 |
| Context window | Not published | 1000000 |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 11 |
| Origin | Global | China |
| Capabilities | Grammar and tone, Generative rewriting, Plagiarism detection, AI detection, Docs editor, Grammar Checker, Plagiarism Checker, AI Detector | Reasoning mode, Open weights (MIT), OpenAI-compatible API, Context caching, Function calling, Thinking Mode, Context Caching, JSON Output |
DeepSeek
Hangzhou lab whose V and R series models are released under permissive licences and undercut Western API pricing by an order of magnitude.
Full DeepSeek record →