Big-AGI replaces 4 paid apps
One open-source tool, 4 subscriptions it can stand in for. Each pairing below is curated and verified by hand, with the honest catch spelled out. No votes, no pay-to-list.
licenseMIT
runsyour machine or their cloud
installUse the hosted web app with your API keys, or self-host with Docker/Vercel
enginesOpenAI, Anthropic, Gemini, Azure, Bedrock, DeepSeek, Groq, Mistral, OpenRouter, Perplexity, Together, xAI, Ollama, LocalAI, LM Studio and OpenAI-compatible endpoints
dataThe open app stores chats and settings locally in the browser by default; hosted Pro adds synced cloud storage, and model requests go to whichever provider the user configures
setupThe free hosted app is immediate, but it does not include model usage: the user must bring provider API keys and understand provider billing
facts verified 2026-08-14
A local-first multi-model workspace with files, search, code and personas; the interface assumes you enjoy buttons.
the catchBig-AGI supplies the interface but no model subscription, cross-device sync, or tightly integrated first-party voice and image experience.
the verdict →all ChatGPT alternatives →A local-first multi-model workspace with files, search, code and personas; the interface assumes you enjoy buttons.
the catchBig-AGI offers a multi-model shell rather than Claude's included Anthropic models, first-party Projects and Artifacts workflow, and managed synchronization.
the verdict →all Claude alternatives →A local-first multi-model workspace with files, search, code and personas; the interface assumes you enjoy buttons.
the catchIt supplies a multi-model interface but not Gemini's included model allowance or first-party integration across Google Search, Gmail, Docs, Drive, and Android.
the verdict →all Google Gemini alternatives →One prompt fans out across models and Beam can merge the answers; free software, paid API keys if you chase frontier models.
the catchIt can fan one prompt across models, but you must provision and bill each provider separately and its interface is less focused on clean answer comparison than Admix.
the verdict →all Admix alternatives →last updated 2026-08-14 · up to $840/yr replaced · no votes, no pay-to-list