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AI One Stop Shop

Big-AGI

Open-source multi-model AI chat for careful thinkers

Chat assistantsLocal and open-source models

Big-AGI is an open-source chat app that lets you ask several AI models at once, compare their answers, and combine the best parts, which helps you catch mistakes. You can self-host it for free, use the hosted free tier, or upgrade for cloud sync. License: MIT. Self-hosters should run 2.1.2 or later, which patches both published advisories.

Available on

WebSelf-hosted

Pricing

Open source (MIT) free to self-host; hosted Free $0; Pro $9/mo billed $108/yr; bring your own model API keys

Free tier available

Freemium pricing

Price checked Oct 27, 2026

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Source

Official site (opens in new tab)
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