
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
#1Checkget records 0 monthly visits with 0% month-over-month growth and Freemium pricing. Grammarly records 58,867,412 monthly visits with -1.5% growth and Freemium pricing.

ChatGPT on any website with a single Cmd/Alt+K shortcut
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | checkget.com | grammarly.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 0 (0) | 58.87M (58,867,412) |
| MoM Traffic Delta |
| 0 (0%) |
| -916.08K (-1.5%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (51.9%) |
|---|
| Direct Visits / mo | 0 | 25.4M |
|---|
| User Rating | 3.8 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|

ChatGPT on any website with a single Cmd/Alt+K shortcut
Press Cmd+K on macOS or Alt+K on Windows to summon the assistant on virtually any site or compatible desktop app, with no copy-pasting into a separate chat window.
The extension detects context automatically, so selecting an email and pressing the shortcut offers a reply-style action, while selecting code offers explanation or optimization actions.
Summarize pages, translate text, correct spelling and grammar, expand or shorten passages, rephrase sentences and switch tone of voice from a quick menu.
Dedicated actions for explaining snippets and optimizing code, useful for developers reading unfamiliar source in a browser.

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.
Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.
Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.
Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
#1
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
#2Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.

Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.

All-in-one AI assistant across web, browser, desktop and mobile

Your AI agent for the browser: chat, automate and create from one sidebar

Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
One-click AI assistant for browsing, writing and research
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.
SpecialistOne browser agent that combines every major AI model with web automation

Great for sentence-level tone adjustments and rewriting, but less comprehensive for standalone grammar rules and style guides.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
All-in-one AI assistant across web, browser, desktop and mobile
Your AI agent for the browser: chat, automate and create from one sidebar
Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
One-click AI assistant for browsing, writing and research
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.
Great for sentence-level tone adjustments and rewriting, but less comprehensive for standalone grammar rules and style guides.