StarkWare’s quantum-safe bitcoin transaction estimate fell from $320 to $66.

Contest entrants, many using AI coding tools, made the search code about 6 times faster.

The $320 figure came from an August transaction that took roughly 3,100 graphics-processor hours across about 100 processors.

StarkWare has not repeated $66 in another mined transaction, and it requires sending transactions directly to miners.

Coins whose public keys are already exposed stay unprotected against a future quantum computer.

How each outlet framed it
CoinDesk
AI-assisted coding reduced quantum-resistant Bitcoin transaction costs from $320 to $66, but the lower figure remains unproven in practice

Sources: CoinDesk