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Open Fiesta

Chat with and compare 300+ AI models — OpenAI, Claude, Gemini, Perplexity, DeepSeek, Grok, and more — side‑by‑side in one place. Built for creators, builders, and teams who want faster, clearer answers.

Built by Niladri Hazra

Hi, I’m Niladri. I’m building Open Fiesta to make multi‑model workflows simple and fast. Follow along on X and GitHub, and feel free to reach out.

What makes Open Fiesta different

→ Compare answers from multiple models in a single view
→ Organize by projects; keep context flowing
→ Works with OpenRouter, Gemini, and more providers

FAQ

What is Open Fiesta?

Open Fiesta is an AI chat app that lets you compare responses from 300+ models in one UI.

Is Open Fiesta free?

There’s a free experience with limitations. You can connect your own API keys for full power and control.

Which models are supported?

OpenAI, Claude, Gemini, Perplexity, DeepSeek, Grok, and many more via OpenRouter and native providers.

How is it different from a single-model chat?

It’s built for side‑by‑side comparison, fast iteration, and project organization—so you can pick the best answer quickly.

Who built Open Fiesta?

Open Fiesta is built by Niladri Hazra. See the contact links above or our Press page.

Press & media

Looking to cover Open Fiesta? See our Press page for brand assets and a short boilerplate.