Everyone's shipping "agents" in 2026. I wanted the opposite: a dead-simple wrapper that gets out of my way.

My workflow for anything that mattered was clunky: ask ChatGPT, paste the same prompt into Claude, paste it again into Gemini, eyeball the differences across tabs. I trust a read across a few models more than any single one.

So I built **Parallel AI**. One window, a shared input box, every model side by side. Type once, your prompt fires at all of them in parallel.

What I cared about:

- **Compare side by side.** Answers land in parallel columns, with optional scroll sync so they move together instead of hopping tabs.
- **Minimalist.** No agent orchestration, no workflow builder, no clutter. A clean window you can drag around to your liking and forget is there.
- **No backend, period.** Nothing in the middle, just a UI over the chats you already use. Runs in your browser on your own logins. No API keys, no signup, prompts go straight to each provider.
- **Truly free and open.** No paywall, no account, no telemetry. MIT licensed, audit it or fork it.

A few other things if you dig in: a prompt library with variables and favorites, drag/drop images and PDFs into every panel at once, right-click any text or image on a page to pre-fill it, up to 16 panels in grid layouts, light/dark/auto themes, 10 languages.

I built it for myself, it's been genuinely useful, figured some of you might get the same mileage.

If you try it, I'd love to hear where it falls short or which providers you'd want next.

**Site:** [parallelai.app](https://parallelai.app)
**Chrome Web Store:** [Parallel AI](https://chromewebstore.google.com/detail/parallel-ai/dhdkfednakbcfibgepeijdnmdoiejong)

A truly free, open AI chat aggregator — minimalist wrapper, no agents, no API keys nonsense