--- title: This free, open-source browser made me ditch Perplexity... description: BrowserOS is a free, open-source Chromium fork that brings agentic AI browsing features similar to Perplexity Comet, Opera Neon, ChatGPT Atlas, and Dia, but... canonical: https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: This free, open-source browser made me ditch Perplexity Comet, Dia, and Opera Neon | daily.dev og:description: BrowserOS is a free, open-source Chromium fork that brings agentic AI browsing features similar to Perplexity Comet, Opera Neon, ChatGPT Atlas, and Dia, but... og:url: https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr og:image: https://api.daily.dev/og/posts/jvCjHFchr.png og:image:alt: This free, open-source browser made me ditch Perplexity Comet, Dia, and Opera Neon og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # This free, open-source browser made me ditch Perplexity Comet, Dia, and Opera Neon **[XDA Developers](https://daily.dev/sources/xda-developers)** · 4 min read · 1 upvotes · 0 comments ## Summary BrowserOS is a free, open-source Chromium fork that brings agentic AI browsing features similar to Perplexity Comet, Opera Neon, ChatGPT Atlas, and Dia, but without a proprietary lock-in or subscription cost. Licensed under AGPL-3.0, its code, Chromium patches, and agent server are fully public and inspectable. Unlike competitors that tie users to specific AI providers, BrowserOS lets users connect their own model via API key, OAuth (e.g., ChatGPT), or local models through Ollama or LM Studio. It supports Agent Mode, letting the AI navigate pages, fill forms, extract data, and complete multi-step tasks, all for free aside from any model usage costs. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is BrowserOS and how does it differ from Perplexity Comet or Opera Neon? BrowserOS is a free, open-source Chromium fork with agentic AI features like page understanding, form filling, and multi-step task automation. Unlike Comet, which locks users into Perplexity's chosen models, or Opera Neon, which centers on Opera's integrated AI services, BrowserOS lets users connect their own model via API key, ChatGPT OAuth, or local models through Ollama or LM Studio. It's licensed under AGPL-3.0 with fully public code. _Comparing AI browser options is easier when daily.dev surfaces real-world takes on tools like BrowserOS._ ### How much does Perplexity Comet cost compared to free alternatives? Perplexity Comet started at $200 per month, making it significantly pricier than competitors. Opera Neon charges roughly $20 a month after exiting its waitlist phase, and Dia offers a $20/month Pro tier for heavier AI use. BrowserOS, by contrast, is completely free since it's open-source, though users bring their own model and cover any associated API usage costs. _Tracking pricing shifts across AI browsers helps developers budget tools; daily.dev keeps that comparison current._ ## Similar posts on daily.dev - [I'm finally ditching Google Chrome for an open-source browser, and its AI does what Chrome can't](https://daily.dev/posts/i-m-finally-ditching-google-chrome-for-an-open-source-browser-and-its-ai-does-what-chrome-can-t-czoanzgz9) · XDA Developers · 1 upvotes · 0 comments - [Look, another AI browser – Manu](https://daily.dev/posts/look-another-ai-browser-manu-7krhxzhky) · Hacker News · 6 upvotes · 1 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#agentic-ai](https://daily.dev/tags/agentic-ai), [#chromium](https://daily.dev/tags/chromium) [View this post on daily.dev](https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"This free, open-source browser made me ditch Perplexity Comet, Dia, and Opera Neon","url":"https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr"},"datePublished":"2026-08-31T11:33:09.474Z","dateModified":"2026-08-31T11:33:36.616Z","description":"BrowserOS is a free, open-source Chromium fork that brings agentic AI browsing features similar to Perplexity Comet, Opera Neon, ChatGPT Atlas, and Dia, but...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/91ef608d8c46036ad6156a688c03dc47?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/91ef608d8c46036ad6156a688c03dc47?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source,agentic-ai,chromium","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"This free, open-source browser made me ditch Perplexity Comet, Dia, and Opera Neon"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/this-free-open-source-browser-made-me-ditch-perplexity-comet-dia-and-opera-neon-jvcjhfchr#faq","mainEntity":[{"@type":"Question","name":"What is BrowserOS and how does it differ from Perplexity Comet or Opera Neon?","acceptedAnswer":{"@type":"Answer","text":"BrowserOS is a free, open-source Chromium fork with agentic AI features like page understanding, form filling, and multi-step task automation. Unlike Comet, which locks users into Perplexity's chosen models, or Opera Neon, which centers on Opera's integrated AI services, BrowserOS lets users connect their own model via API key, ChatGPT OAuth, or local models through Ollama or LM Studio. It's licensed under AGPL-3.0 with fully public code. Comparing AI browser options is easier when daily.dev surfaces real-world takes on tools like BrowserOS."}},{"@type":"Question","name":"How much does Perplexity Comet cost compared to free alternatives?","acceptedAnswer":{"@type":"Answer","text":"Perplexity Comet started at $200 per month, making it significantly pricier than competitors. Opera Neon charges roughly $20 a month after exiting its waitlist phase, and Dia offers a $20/month Pro tier for heavier AI use. BrowserOS, by contrast, is completely free since it's open-source, though users bring their own model and cover any associated API usage costs. 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