# Gmail AutoComplete vs HyperWrite Gmail AutoComplete records 0 monthly visits with — month-over-month growth and Free (open source; you supply your own AI API keys) pricing. HyperWrite records 255,429 monthly visits with +34.4% growth and Freemium pricing. | Metric | [Gmail AutoComplete](https://openaitools.app/tool/gmail-autocomplete) | [HyperWrite](https://openaitools.app/tool/hyperwrite-ai) | | :--- | :--- | :--- | | Website URL | https://chromewebstore.google.com/detail/gmail-autocomplete/jpbpagapiifleboecbkfljelpeknlbcl | https://www.hyperwriteai.com | | Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Text Generator | AI Writing Assistants, AI Text Generator, AI Research Tool, AI Article Summarizer | | Pricing Model | Free (open source; you supply your own AI API keys) | Freemium | | Monthly Visits | 0 | 255,429 | | MoM Growth Rate | — | +34.4% | | Primary Market | Global | United States | | Direct Visits | 0 | 107,719 | | Review Score | 3.8 | 3.9 | | Saved Count | 0 | 8 | | Supported Platforms | Browser Extension | Website | ## Gmail AutoComplete Gmail AutoComplete takes a different approach from the usual email AI tools: instead of paying a subscription to a single vendor, you bring your own API key and choose which underlying model handles each request. The extension supports OpenAI GPT-3.5 and GPT-4, Claude 2, LLaMA 2 and Grok 1, so you can match the model to the task or to your budget. The interaction model has two paths. The quick route is a right-click context menu item labelled "Improve Email ✨" that offers canned actions: summarize, shorten, make friendly, complete the email, generate a response, proofread, or convert into academic or business style. The power route is a command prompt opened with Ctrl+Z, where you type a free-form instruction and can browse your command history with the arrow keys. Every change is shown in a three-panel diff view — original text, modified text, and colour-coded differences — so you decide exactly what to keep. The extension stores API keys locally, performs processing in the browser, and declares that it does not collect or store email content. The project lives on GitHub under an open-source licence. **Pricing & Plans:** Free [Profile (Markdown)](https://openaitools.app/tool/gmail-autocomplete.md) ## HyperWrite HyperWrite positions itself as a predictive AI writing assistant that follows you across the web. Through its Chrome extension, it offers TypeAhead suggestions that complete sentences as you type inside Gmail, Google Docs, and other web editors, alongside AutoWrite for generating paragraphs from a short instruction. An email responder drafts full replies from a few keywords, which is a common productivity win for people who live in their inbox. Beyond the assistant itself, the product ships a large library of pre-built tools covering rewriting, summarization, explaining complex topics in plain language, speeches, and more. Users can also assemble custom AI tools that chain steps together for repeated workflows. HyperWrite Scholar adds a research layer by searching scholarly articles and papers, so generated text can be grounded in current, citation-backed information rather than the assistant's memory alone. Pricing is subscription-based with a free entry point alongside paid tiers. Paid plans increase the monthly AI message allowance, unlock custom personas that mimic your writing style, and give unlimited TypeAhead suggestions. Higher tiers remove the message cap entirely and provide early access to experimental writing and agent features. **Pricing & Plans:** Freemium. A free tier introduces the assistant and a limited message allowance; Premium is listed around $19.99/month with 250 AI messages, citations, real-time info, and 3 custom personas; Ultra around $44.99/month adds unlimited AI messages, 10 personas, and early access to experimental features. Annual billing is available at a discount. - **TypeAhead autocomplete:** Context-aware sentence completions appear as you type in Gmail, Google Docs, and other sites through the Chrome extension. - **AutoWrite and rewriting tools:** Generate a paragraph from a short prompt or rewrite existing text in a new tone while preserving meaning. - **Citation-backed research:** HyperWrite Scholar searches millions of scholarly articles so drafts can include factual, properly cited information. - **Email responder:** Turn a few keywords into a complete, ready-to-send email reply without switching tabs. - **Custom AI tools:** Build your own reusable AI tools that chain prompts and steps for recurring workflows. **Strengths:** Works directly inside the browser via a Chrome extension, so no app switching; Combines writing help with citation-backed research in one subscription; Large catalog of ready-made tools plus custom tool building; Essays, emails, and rewrites share one account and one message allowance **Limitations:** Message caps on lower tiers can be limiting for heavy users; Best autocomplete experience depends on using the Chrome extension; Full capabilities require a paid plan beyond the free allowance [Profile (Markdown)](https://openaitools.app/tool/hyperwrite-ai.md) ## Frequently Asked Questions ### How do Gmail AutoComplete and HyperWrite compare in monthly traffic? Gmail AutoComplete has 0 monthly visits, while HyperWrite has 255,429. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Gmail AutoComplete has a month-over-month growth rate of —; HyperWrite has +34.4%. ### How does pricing compare? Gmail AutoComplete: Free (open source; you supply your own AI API keys). Free HyperWrite: Freemium. Freemium. A free tier introduces the assistant and a limited message allowance; Premium is listed around $19.99/month with 250 AI messages, citations, real-time info, and 3 custom personas; Ultra around $44.99/month adds unlimited AI messages, 10 personas, and early access to experimental features. Annual billing is available at a discount. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) | | 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) | | 3 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) | | 4 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Specializes in robust grammar correction, spelling, and tone adjustments across apps, but lacks generative predictive writing autocomplete. | [.md](https://openaitools.app/tool/grammarly.md) | | 5 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Excels at sentence paraphrasing, summarization, and citation formatting, but lacks HyperWrite's active predictive browser autocompletion. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) | | 6 | [Superhuman](https://openaitools.app/tool/superhuman) | 6,514,241 | +7.9% | Paid | The AI productivity suite with agents, email, and docs that work wherever you do | [.md](https://openaitools.app/tool/superhuman.md) | | 7 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | AI grammar, spelling and style checker for 30+ languages | [.md](https://openaitools.app/tool/languagetool.md) | | 8 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers an all-in-one browser extension with chat, writing assistance, and search capabilities, though less focused on predictive autocomplete. | [.md](https://openaitools.app/tool/monica-ai.md) | | 9 | [Sider](https://openaitools.app/tool/sider-ai-extension) | 2,644,740 | -10.6% | Freemium | Provides a browser extension sidebar integrating multiple frontier models and writing tools, offering broader model choice than HyperWrite. | [.md](https://openaitools.app/tool/sider-ai-extension.md) | | 10 | [Jenni](https://openaitools.app/tool/jenni) | 1,498,133 | +5.2% | Freemium | Tailored specifically for academic and research writing with source citations and autocomplete, rivaling HyperWrite's scholarly tools. | [.md](https://openaitools.app/tool/jenni.md) | --- Source: https://openaitools.app/compare/gmail-autocomplete-vs-hyperwrite-ai More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)