# Account and UTXO Execution Models Compete for Scale

The contest between account-based and extended-UTXO execution recurs as chains chase throughput and fee predictability, making execution architecture a durable axis of competition rather than a settled question.

- Conviction: 40 / 100 (forming)
- Horizon: Emerging (watchlist)
- Tracking since: 2026-07-08T00:00:00.000Z
- Last updated: 2026-07-08T05:13:37.130Z
- Canonical: https://polylog.news/crypto/trends/smart-contract-execution-models-diverge
- Publisher: Polylog