AI Slashes Cost of Quantum-Safe Bitcoin by 80% in Just One Week

AI models competed to make Bitcoin safer from future quantum computers, cutting the cost from $320 to about $67 in a single week.

Imagine a future where super-powerful computers could crack the codes that protect your Bitcoin. That worry — called "Q-Day" — is pushing developers to make Bitcoin "quantum-safe." And in a surprising twist, AI models just made that protection dramatically cheaper.

What happened? A company called StarkWare ran an open competition to see how cheaply people could build a special kind of Bitcoin transaction that resists attacks from quantum computers. In just one week, the estimated cost dropped by nearly 80%.

Starting cost: around $320 per transaction
New cost: roughly $67
The savings came from making the software run faster

Why does it cost money at all? Building one of these safe transactions requires a computer to do a huge "brute-force search" — basically trying billions of possibilities until it finds the right one. Only about 1 in 70 trillion tries works. This runs on your own computer's graphics card (GPU), so the cost shows up as a compute bill, not a normal Bitcoin fee. Faster code means fewer hours of computing — and less money spent.

AI took the lead The developers who got the best results were using AI models to write faster code. StarkWare said the top performers included Anthropic's Opus 5 and Fable 5.1, with OpenAI's GPT-6 Astra, Grok 4.6, and Kimi close behind. One key speed test jumped from 146 million checks per second to over 820 million on a standard graphics card.

Important caveats StarkWare warned people not to get carried away:

The $67 is just an estimate, not a market price, and it keeps changing.
This does not make all of Bitcoin quantum-safe by itself.
These transactions are unusual and only protect coins that haven't already been exposed.
The company still believes the best long-term fix is a "soft fork" (a coordinated software upgrade to Bitcoin's rules).

The bottom line: AI is speeding up the race to protect Bitcoin from future quantum threats — but this is an early experiment, not a finished solution. Big players like Coinbase are already preparing their own quantum-safety plans.

This is an AI-generated summary. Read the original article at: https://decrypt.co/379378/ai-agents-racing-make-quantum-safe-bitcoin-cheap