While taxis in Thailand are generally considered safe, it is always important to exercise caution when using this mode of transportation. One way to ensure your safety is to only use reputable taxi companies, which can be identified by their logo and the presence of a meter. It is also a good idea to always check the meter before starting your journey to ensure that it is working properly, and to avoid taxis that do not use a meter.
If you are concerned about your safety while using a taxi in Thailand, it is also a good idea to sit in the back seat of the taxi, rather than the front. This will allow you to exit the taxi quickly and easily in the event of an emergency.