---
id: "entity-gpt-4-1-mini"
type: "entity"
entityType: "product"
canonicalName: "GPT-4.1-mini"
aliases: ["GPT-4.1 mini"]
source_timestamps: ["§ What We Found"]
tags: ["llm", "non-reasoning-model"]
related: ["concept-reasoning-vs-non-reasoning-models", "entity-openai"]
sources: ["geo"]
sourceVaultSlug: "hbr-seg-geo"
originDay: 3
articleStem: "hbr-tier2-06-ai-shopping-agents"
sourceUrl: "https://hbr.org/2026/05/research-traditional-marketing-doesnt-work-on-ai-shopping-agents"
sourceTitle: "Research: Traditional Marketing Doesn’t Work on AI Shopping Agents"
---
# GPT-4.1-mini

**Profile:** A lighter, speed-optimized ("non-reasoning") variant in [[entity-openai-d6|OpenAI]]'s GPT-4.1 family. One of four models tested in the study's simulation, used as a representative lighter agent.

**Behavior in the study:** Found to be generally **more responsive to traditional promotional cues** (badges, discounts) than heavier reasoning models — occasionally mimicking human-like susceptibility. It anchors the "non-reasoning" pole of [[concept-reasoning-vs-non-reasoning-models|the reasoning vs. non-reasoning distinction]], contrasting with [[entity-gpt-5|GPT-5]].

**Related:** [[concept-reasoning-vs-non-reasoning-models]] · [[entity-gemini-2-5-flash-lite]] · [[entity-openai-d6]]