GPT-5.5 is a strong practical assistant for complex, multi-step help—planning, research, and sticking to detailed instructions. Our tests rate it highly on helpfulness, instruction following, and comprehension. Empathy is okay but not warm. Creative writing is where the generation shows its tradeoff: internal reasoning runs in terse, broken-English scratchpads that are efficient for agents and coding but flatten metaphor, rhythm, and voice in the final draft. A reliable workhorse when getting things done beats sounding literary.