---
id: "action-build-persona-gpt"
type: "action-item"
source_url: "https://hbr.org/2024/12/how-to-create-value-systematically-with-gen-ai"
source_title: "How to Create Value Systematically with Gen AI"
source_timestamps: ["§ Visionary Innovation"]
tags: ["marketing", "customer-experience", "custom-gpts"]
related: ["concept-value-creation-pyramid", "framework-half-day-prototyping"]
action: "Create a custom GPT programmed with varied customer personas to critique and evaluate product marketing materials."
outcome: "Identification of messaging blind spots and ignition of new, transformative thinking regarding customer interactions."
sources: ["spine"]
sourceVaultSlug: "hbr-seg-spine"
originDay: 1
articleStem: "hbr-nm-98-create-value-systematically-genai"
sourceUrl: "https://hbr.org/2024/12/how-to-create-value-systematically-with-gen-ai"
sourceTitle: "How to Create Value Systematically with Gen AI"
---
# Build custom GPTs for customer persona evaluation

**Action.** As demonstrated by a **billion-dollar distributor** in the authors' workshop, non-technical teams can leverage their market expertise to build a **custom GPT that generates varied customer personas**. These personas then evaluate product marketing materials, uncovering messaging blind spots and sparking new approaches to customer interaction. This is a concrete Level 4 (Visionary Innovation) move within the [[concept-value-creation-pyramid]] and a typical output of the [[framework-half-day-prototyping]] workshop.

**Expected outcome:** identification of messaging blind spots and ignition of new, transformative thinking about customer interactions.

**Why it matters.** It shows that reimagining stakeholder engagement — the top of the pyramid — can start from off-the-shelf tools and domain expertise, not custom infrastructure.