Other
- G1 (Rede Globo), a Brazilian news portal
- G1 licence, the first tier in the graduated licensing programme for Ontario's new drivers
- G1 is often used to refer to the first generation of a television series, such as the Transformers animated series or My Little Pony.
- In ISO/IEC 2022 character sets, one of 4 groups of characters that may be swapped into the encoding space via control codes
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