Open-Source AI · Self-hosted chat UI

big-AGI vs WSUP AI

big-AGI vs WSUP AI compared for 2026 — features, license, ease of use, performance and which one to choose. Pro-grade chat for many models vs Chat with AI characters in a browser, grouped by theme.

Updated regularly · curated by olud.ai

Choose big-AGI for a powerful multi-provider chat UI. Choose WSUP AI for people who want character roleplay chat in a browser, no install, no account.

big-AGI vs WSUP AI at a glance

Specbig-AGIWSUP AI
CategorySelf-hosted chat UISelf-hosted chat UI
TypeSelf-hosted AI chat UIHosted character chat site
LicenseMITProprietary
Runs locallySelf-hostedNo
Primary languageTypeScript—
Ease of useBeginnerBeginner
Best fora powerful multi-provider chat UIpeople who want character roleplay chat in a browser, no install, no account
GitHub stars7.1k—

How big-AGI and WSUP AI score

🏆 Overall edge: big-AGI — 4.3 vs 3.3 / 5
Criterionbig-AGIWSUP AI
Popularity2.5n/a
Maintenance4.5n/a
Ease of use5.05.0
Privacy4.53.5
License freedom5.01.5

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

big-AGI

Self-hosted AI chat UI · MIT

big-AGI is a feature-rich, self-hostable AI suite with a polished chat UI, supporting many providers, personas, multi-model beam and advanced tools.

  • Supports dozens of model providers
  • Personas, beam and advanced tooling
  • Polished, fast interface
See the big-AGI page →

WSUP AI

Hosted character chat site · Proprietary

WSUP AI is a hosted site for chatting with AI characters in a browser, with nothing to download: 2,065 characters across eight tags, plus search, Favorites and a form to build your own. No price, plan or payment appears on the page. Note before using it: the content filter loads set to "Unfiltered" with no age check, and the largest tag, Fan / Unofficial, holds user-created characters based on living people and copyrighted fiction.

  • Chat opens in the browser, nothing to install; the page states no sign-up is needed.
  • 2,065 characters in eight tags, with search, swipe browsing, Favorites and Recent chats.
  • A switch hides characters flagged as explicit; a form lets visitors build their own.
Visit WSUP AI →

Key differences

big-AGI is self-hosted AI chat UI, while WSUP AI is hosted character chat site. Their licenses differ (MIT vs Proprietary), which matters if you ship a commercial product. They also differ in how they run (Self-hosted vs No). In short, big-AGI fits a powerful multi-provider chat UI, and WSUP AI fits people who want character roleplay chat in a browser, no install, no account.

Which should you choose?

Choose big-AGI for a powerful multi-provider chat UI. Choose WSUP AI for people who want character roleplay chat in a browser, no install, no account.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is big-AGI or WSUP AI easier to use?

Both sit at a similar level (Beginner). Your choice should come down to fit rather than difficulty.

Are big-AGI and WSUP AI free?

big-AGI is free and open source (MIT), and WSUP AI is free to use but closed source. Neither charges for the core software.

Can I run big-AGI and WSUP AI locally?

big-AGI: self-hosted · WSUP AI: no. Both can be used without sending your data to a third-party cloud where their setup allows.

big-AGI vs WSUP AI — which should I pick in 2026?

Choose big-AGI for a powerful multi-provider chat UI. Choose WSUP AI for people who want character roleplay chat in a browser, no install, no account.

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