#convergence-bias News & Analysis

Mutation Without Variation: Convergence Dynamics in LLM-Driven Program Evolution

Researchers demonstrate that Large Language Models exhibit systematic convergence bias when mutating programs, revisiting similar structural forms in 87% of cases despite stochastic variation. This reveals a fundamental tension in LLM-driven program evolution: while these models excel at semantics-aware transformations, they inherently constrain exploration toward restricted regions of program space, limiting their effectiveness for open-ended evolutionary search.