Dia is freemium — a usable free tier with paid plans above it. Opera Browser AI (Aria) is free, with no paid plan attached. Both are listed under Browser Extensions & Copilots, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.
Dia is freemium — a usable free tier with paid plans above it and is listed for AI-native Chromium browser (from the makers of Arc) with AI chat built into every tab, not bolted on as a sidebar. Opera Browser AI (Aria) is free, with no paid plan attached and is listed for free, native AI assistant built into Opera's mainstream and GX browsers, no separate app needed. Both sit in Browser Extensions & Copilots.
Opera Browser AI (Aria) is the cheaper starting point: it is free, with no paid plan attached, while Dia is freemium — a usable free tier with paid plans above it. Pricing tiers here come from the catalog, not from a promotional page.
Choose Dia if you need AI-native Chromium browser (from the makers of Arc) with AI chat built into every tab, not bolted on as a sidebar; choose Opera Browser AI (Aria) if you need free, native AI assistant built into Opera's mainstream and GX browsers, no separate app needed. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.
| Dia | Opera Browser AI (Aria) | |
|---|---|---|
| Pricing tier | Free tier + paid plans | Free |
| Free to start | Yes | Yes |
| Category | AI Chat & Assistants | AI Chat & Assistants |
| Type | Browser Extensions & Copilots | Browser Extensions & Copilots |
| Listed capabilities |
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| Tags | dia browser, ai browser, browser company ai, agentic browser, free ai browser, chromium ai | opera aria, opera browser ai, free browser assistant, opera one ai, gpt gemini browser, built-in ai chat |
| Website | diabrowser.com | opera.com |
| Full page | Dia details → | Opera Browser AI (Aria) details → |
| Alternatives | Dia alternatives → | Opera Browser AI (Aria) alternatives → |