Do I need to provide accommodation details for my entire stay on a visa exempt entry to Thailand?

When entering Thailand on a visa-exempt basis, you typically only need to show accommodation for a few days or a week. While it's not strictly required to have accommodation for your entire stay, having a booking for at least part of your trip is advisable. Immigration officers may ask for proof of accommodation, especially if they are looking for reasons to deny entry, but usually, a short-term booking suffices.