Before revision:  In this paper, we present our ongoing effort to build an environment to facilitate the research for models of this capability. In this environment, there are no explicit definitions of tasks or rewards given when accomplishing those tasks. Rather the models experience the experience of the human infants from fetus to 12 months. The agent should learn to speak the first words as a human child does. We expect the environment will contribute to the research for HLAI.
After revision:  In this paper, we present a classification of intelligence according to how individual agents learn and propose a definition and a test for HLAI. The main idea is that language acquisition without explicit rewards can be a sufficient test for HLAI.