Bitcoin Falls Behind Stablecoins in Emerging AI‑Driven Payment Landscape

Recent analyses from BlackRock and the Bitcoin Policy Institute (BPI) indicate that Bitcoin is losing ground to stablecoins in the medium‑term “agentic” payment economy driven by artificial intelligence, though its role as a savings asset remains dominant.

BlackRock’s view of the machine‑native economy

The BlackRock paper largely omits Bitcoin, describing it only as a savings technology. It highlights AI adoption as a source of demand for digital assets and points to stablecoins as the most likely vehicle for transactional use. The report references protocols such as x402, MPP, ACP, AP2 and TAP, backed by firms like Coinbase, Stripe, OpenAI, Google and Visa, while Bitcoin‑specific protocols (Lightning Network, L402) receive only brief mention.

Bitcoin Policy Institute findings

BPI’s updated research shows a sharp decline in AI model preference for Bitcoin payments. In the March 2026 survey, 53% of AI model responses favored stablecoins for payments and 36% favored Bitcoin. By September 2026, stablecoin preference rose to 77% while Bitcoin fell to 20%. The newer study tested nine AI models, with only Grok 4.6 still selecting Bitcoin as the top choice.

Stablecoins dominate the agentic payment space

Data from 402index.io shows Bitcoin’s L402 protocol accounts for just 0.4% of verified payment services, compared with 98% for the x402 protocol. Although the Lightning Network can operate under other protocols (e.g., Stripe’s Machine Payments Protocol), the current default settings heavily favor stablecoins.

Structural challenges for Bitcoin

• Institutional players prefer permissioned, compliance‑friendly systems.
• Lightning’s cost advantage is most relevant for sub‑cent transactions, while stablecoin fees are fractions of a cent.
• Default settings in emerging payment infrastructures currently prioritize stablecoins.

Potential paths forward

Developments such as Lightning Labs’ Wavelength alpha, which enables self‑custodial Bitcoin payments without full Lightning node operation, and advocacy from Bitcoin‑focused groups like Block’s Spiral initiative could improve Bitcoin’s position. Adoption by a major AI lab or open‑source agent platform could also shift the balance.

Overall, Bitcoin’s medium‑term outlook in the AI‑driven payment economy appears challenged, but long‑term outcomes remain uncertain.