Grammarly
Grammar, tone and generative rewriting across browser, desktop and mobile.
Full Grammarly record →Head to head
Grammarly vs Kimi
Grammarly (Grammarly) and Kimi (Moonshot AI) both sit in Writing. Kimi is the cheaper entry point at API access with pay-as-you-go pricing based on token consumption. File APIs are currently free.. Kimi shipped more tracked changes in the last 30 days (10 vs 2). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Grammarly Grammarly | Kimi Moonshot AI |
|---|---|---|
| Segment | Writing | Writing |
| Version | Pro | Kimi K3 |
| Entry cost | Free tier · from $12/mo | API access with pay-as-you-go pricing based on token consumption. File APIs are currently free. |
| Pricing tiers | Free free · Pro $12 · Enterprise free | Pay-as-you-go / Pay-per-token free |
| Model stack | Grammarly AI · Grammarly AI Assistant · Grammarly ML · Grammarly Proprietary AI · In-house NLP models · Undisclosed frontier LLM | Kimi K2.6 · Kimi K2.7 Code · Kimi K3 · kimi-k2.5 · kimi-k2.7-code-highspeed |
| Context window | Not published | 1000000 |
| Public API | ||
| Routes models | ||
| Changes / 30d | 2 | 10 |
| Origin | Global | China |
| Capabilities | Grammar and tone, Generative rewriting, Plagiarism detection, AI detection, Docs editor, Grammar Checker, Plagiarism Checker, AI Detector | Native multimodal (visual + text), 1M-token context, Agentic tool use, Thinking / non-thinking modes, Dedicated coding models (k2.7-code, high-speed), Open weights, 1M token context, Multimodal input |
Kimi
Moonshot AI's assistant, known for very long context windows and the open-weight K2 agentic model.
Full Kimi record →