Comet vs Opera
Comet
perplexity.ai
Opera
opera.comSide by side
| Figure | Comet | Opera |
|---|---|---|
| Price from | Free | $4/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 1 | 4 |
| Spec score · Web browsers | 8.7 (#23) | 9.2 (#5) |
| Browser engine | chromium | chromium |
| Built-in ad blocking | Yes | Yes |
| Cross-device sync | Yes | Yes |
| Extension support | chrome_store | both |
| Free plan | Yes | Yes |
| Headquarters | San Francisco, California, United States | Oslo, Norway |
| Supported platforms | both | Opera offers downloads for Windows, macOS, Linux, Android, iOS, and Chromebook. |
| Privacy controls | Users can delete browsing and search history, cookies, and cached data in Comet’s privacy settings. | Opera lets users clear browsing data on exit, including history, cookies, passwords, and autofill data. |
| Product | Comet is Perplexity’s AI browser with a personal assistant built into the browsing experience. | Opera is a web browser with built-in tools for browsing, communication, and AI assistance. |
| Support | For Comet-specific questions, Perplexity lists [email protected] as its contact address. | Opera directs users to its Help Center, community forums, and bug report wizard for assistance and issue reports. |
Plans
Opera
- Opera browserFree
- VPN Pro — six months$5 a month
- VPN Pro — one month$8 a month
- VPN Pro — one year$48 a year
In their own words
Comet
Comet is Perplexity’s AI browser, with an assistant built into browsing. The assistant can answer questions about open tabs, search the web and interact with websites on the user’s behalf. Examples include summarizing or explaining content, comparing tabs, drafting emails, scheduling meetings and making purchases. Perplexity is the default search engine, and Comet uses Chromium. It is free to download at free for Android, iOS, macOS and Windows. Comet supports most Chrome extensions, though users must install and configure them again because extension data does not transfer from Chrome. The browser stores URLs, searches, cookies, open tabs and site permissions locally. Website credentials are kept in the device’s secure vault, not on Perplexity’s servers. Privacy settings allow deletion of browsing and search history, cookies and cached data. However, some queries may involve sending page context, including text or email, to Perplexity’s servers. Email or schedule tasks may require opting in to Perplexity Connector access; those permissions can later be changed or revoked. Comet says users can stop the agent and should review actions before confirming them.
Opera
Opera is a free web browser for Android, iOS, Linux, macOS, Windows, and the web, with extension support and cross-device sync. Tab Islands group related tabs for collapsing or expanding. Built-in tools include an ad blocker that can also block cryptocurrency-mining scripts, plus a free VPN with no data cap and three general locations. Opera AI can use open-tab context, generate images, summarize PDFs, and translate or summarize YouTube videos. ChatGPT and Gemini are available from the sidebar, and Opera says its AI tools do not require sign-up. The sidebar also offers WhatsApp, Slack, Discord, Messenger, and Telegram, while Music Player supports Apple Music, Spotify, YouTube Music, and Deezer. Users can set browsing data—including history, cookies, passwords, and autofill data—to clear on exit. Opera browser costs nothing. VPN Pro is separate: plans cost $4 per month billed $48 yearly, $5 per month billed $30 every six months, or $8 per month billed monthly.