Big-AGI
An open-source AI chat workspace that runs in the browser with your own API keys and can send one prompt to several models at once and merge their answers.
About Big-AGI
Relying on a single model's answer makes errors hard to spot, and many chat apps lock you into one provider.
Who it’s for
- Experts who compare answers from several frontier models
- Developers who want a self-hostable chat interface for their own keys
When to consider it
Consider Big-AGI when you want to run 2 to 24 models in parallel on the same prompt, compare where they agree and fuse the replies, using keys from OpenAI, Anthropic, Google, OpenRouter, Ollama and many other providers.
Tradeoffs & limitations
- Every plan uses your own API keys, so model usage is billed by each provider; the hosted app is free, and Pro, which adds cloud backup and multi-device sync, costs $9 a month billed yearly ($108).
- The open-source code is MIT licensed and can be self-hosted.
SOTA overview · Documentation-based assessment · Sources & review method
Updates
No updates shared yet.
Discussion
Newest firstAsk a question or share how you use Big-AGI.
Keep it helpful. Community rules
Loading discussion…
Sources & review method
Documentation-based assessment · Oct 31, 2026 · Prepared with AI assistance; not a hands-on benchmark.
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Big-AGI official website
An open-source AI chat workspace that runs in the browser with your own API keys and can send one prompt to several models at once and merge their answers.
Based on official pages and announcements checked on 2026-10-31. No hands-on test, performance benchmark or popularity ranking is claimed.