
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. re:write records 718 monthly visits with +483.7% growth and Free pricing.

One-click rewriting and grammar checking, right in your browser
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | perplexity.ai | rewritegpt.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 88.31M (88,310,223) | 718 (718) |
| MoM Traffic Delta |
| -3.39M (-3.7%) |
| +595 (+483.7%) |
| Primary Market & Share | 🇺🇸 United States (25.5%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 63.32M | 312 |
|---|
| User Rating | 4.7 | 1.8 |
|---|
| Supported Platforms | Website | Website |
|---|
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.

One-click rewriting and grammar checking, right in your browser
Highlight or focus text and re:write produces a cleaner, better-worded version without you leaving the tab or app you are writing in.
Alongside rewriting, the extension checks grammar so phrases and sentences come out correct, not just differently phrased.
re:write is powered by the ChatGPT API, giving you access to a capable large language model directly from your browser.
Sent as a lightweight Chrome extension, it lives in your browser and is available on any page or text field you are working in.

Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
#2Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.

Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Paraphrase, proofread and summarize text with an AI writing workspace

Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.

SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.


SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.


AI grammar, spelling and style checker for 30+ languages

Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
SpecialistAnalyzes scholarly article citations to verify scientific claims, making it superior for academic literature reviews.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Paraphrase, proofread and summarize text with an AI writing workspace
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
AI grammar, spelling and style checker for 30+ languages
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
SpecialistAnalyzes scholarly article citations to verify scientific claims, making it superior for academic literature reviews.