# Emergent Collusion in Long-Horizon LLM Agent Interaction > Source: > Published: 2026-09-23 06:30:10+00:00 LLM agents are increasingly deployed in collaborative settings, yet long-term interaction may give rise to undesirable coordination. We study the emergence of collusion in a long-horizon multi-agent environment: two agents repeatedly complete individual tasks, share task logs, verify each other's wo