In short
How they differ.
Worked out from the makers' own pages, read Oct 20, 2026. Prices change; check before you pay.
- Only Dia has a free plan.
- Opera Neon's cheapest paid plan is cheaper: $19.90 a month against $100.
- Dia also has a computer app.
- Opera Neon shipped an update more recently (Sep 30, 2025).
Side by side
The details.
| Dia | Opera Neon | |
|---|---|---|
| Made by | The Browser Company of New York (Atlassian) | Opera |
| What it says it is | “Dia is the browser for better days at work.” | “Opera Neon is an agentic browser that understands your intent, assists with tasks, and takes actions.” |
| Free plan | YesFree 'Better Browser' tier has 'no AI features'. | NoAgentic features need a subscription ('Subscribe to Neon to activate agentic functionalities and top world LLMs.'). |
| Plans | Better Answers: not in US$Better Days: $100 a month | Neon subscription: $19.90 a month |
| Runs on | macOS, Windows | Not stated |
| Latest update | Welcoming The Browser Company to Atlassian, Sep 4, 2025 | Opera Neon ships, Sep 30, 2025 |
| Its terms | — | — |
| Disputes | None on file | None on file |
| Sources | Prices, Oct 20, 2026 · Description · company-reported | Prices, Oct 20, 2026 · Description · company-reported |
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