AI tool guides

Find guides to Muse, Codex, ChatGPT and Gemini, including getting started, downloads, account settings, subscriptions and troubleshooting. Begin with the Muse introduction or browse by product and question. Edited by Lin Zhiyuan.

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October 11, 2026

Gemini Not Available in Your Country? Eligibility Guide

Separate Gemini app availability from Google One, Google AI plan and student-offer eligibility. Check the correct country list, account, age, payments and verification before changing settings.