Anthropic · OpenAI · GPT · AI Agent · Bitcoin · Decrypt
AI Agents Are Racing to Make Quantum-Safe Bitcoin Cheap—And Winning
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The price of building a quantum-resistant Bitcoin transaction has plunged nearly 80% in a single week, after developers and AI models competed to optimize the code behind it.
Key facts
- According to StarkWare, which ran the competition alongside Yukon Research and Eigen Labs, the estimated cost of constructing such a transaction fell from about $320 to roughly $67 in GPU compute
- Notably, the leading records were held by developers running AI models, with StarkWare citing Anthropic's Opus 5 and Fable 5.1 at the top and OpenAI's GPT-6 Astra, Grok 4.6, and Kimi close behind
- That initial transaction took roughly 3,100 GPU-hours and cost around $320 to build
- The price of building a quantum-resistant Bitcoin transaction has plunged nearly 80% in a single week, after developers and AI models competed to optimize the code behind it
Summary
StarkWare said the estimated cost of building a quantum-safe Bitcoin transaction fell from about $320 to roughly $67 in a week, as solvers in its Quantum-Safe Bitcoin Optimization Challenge optimized the brute-force search that runs on a user's own GPU before hitting the chain. The leading records were held by developers running AI models, including Anthropic's Opus 5 and Fable 5.1, with OpenAI's GPT-6 Astra, Grok 4.6 and Kimi close behind. StarkWare cautioned the $67 is an estimate, not a price, and that the work doesn't make Bitcoin quantum-safe on its own—it still favors a soft fork long-term. According to StarkWare, which ran the competition alongside Yukon Research and Eigen Labs, the estimated cost of constructing such a transaction fell from about $320 to roughly $67 in GPU compute.