According to BlockBeats news, Sonic

According to BlockBeats news, Sonic Labs has announced that at launch, the circulating supply of S will be approximately 2.88 billion, with an initial total supply of 3.175 billion, allowing a 1:1 migration ratio. Six months after launch, the network will implement a unique 9-month linear burn mechanism, minting 6% of the total initial supply to extend the airdrop campaign and reward users and developers.

Additionally, starting six months after

Additionally, starting six months after launch, the network will mint 1.5% of the initial total supply annually for six years to fund growth, with any unused S being destroyed each year to ensure efficient use. Four years after launch, the network will mint 1.75% annually to reward validators permanently.

All unused ecological growth tokens will be accounted for and destroyed annually. The maximum expansion of S is capped at 15% by 2031 (excluding block rate rewards), during which multiple burning mechanisms are expected to significantly reduce the expansion rate.

Source