FAQs
What makes Sigma AI Browser different from other AI browsers?
It’s the only mainstream browser that runs SigmaGPT locally by default — meaning your prompts, browsing context, and generated content never leave your device unless you explicitly choose otherwise. Combined with a lean, privacy-hardened codebase, it delivers true AI empowerment *without* surveillance.
Is Sigma AI Browser really free to use?
Yes — the core browser and full SigmaGPT functionality are completely free forever. The optional Pro tier enhances productivity with features like multi-step AI agents, custom prompt libraries, and encrypted cloud sync — but none are required to experience AI-powered browsing at its best.
Does Sigma AI Browser work offline?
The lightweight SigmaGPT Lite model runs entirely offline for basic tasks (chat, summarization, translation). For advanced reasoning or large-context generation, an internet connection enables optional cloud acceleration — always with clear user consent and encryption.