Perplexity Comet vs WriteFastAI: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Feature lists share 0 overlapping items across the two listings.
Perplexity Comet is a web browser with a built-in AI assistant that answers questions, summarizes pages, and helps you remember and connect what you find.
Chrome extension for writing and summarizing content using your own OpenAI API key.
| Attribute | Perplexity Comet | WriteFastAI |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | free |
| Votes | 0 | 0 |
| Category | AI Assistant | AI Summarizer |
| Feature | Perplexity Comet | WriteFastAI |
|---|---|---|
| An AI-powered browser for enhanced curiosity and productivity | ||
| Easy installation as a Chrome extension | ||
| Customizable prompts and tone | ||
| Requires users to provide their own OpenAI API key | ||
| Limited to the capabilities of the OpenAI API |