# E-Commerce Bench: Evaluating LLM Agents on Long-Horizon Autonomous Business Operation > Source: > Published: 2026-09-02 02:30:03+00:00 Long-horizon agentic tasks go beyond chaining short tasks over more interaction turns. Their evolving dynamic environments and long-range dependencies require Large Language Models (LLMs) to continually explore, learn from experience, and adapt their policies over thousands of steps. We introduce E-