The recommended answer is very vague. At present, there are indeed many trademarks with "GT", but no matter which category is protected, according to the trademark review rules, a trademark is composed of one or two foreign letters with unusual fonts, which has no meaning and obviously different glyphs, making the overall difference between trademarks obvious, and it is not easy for the relevant public to misunderstand the source of goods or services, and it is regarded as not similar. So as long as your "GT" trademark design is not similar to others, the difference is obvious.