All blogs · Written by Ajitesh
AI PM Interview: Design a Children's AI Storyteller
Welcome to the 16th edition of PM Interview Prep Weekly! I’m Ajitesh, and today we’re tackling a product design case asked in AI PM role interview.
A friend recently reported this question from his Gemini product team interview. I found it to be a good example of AI PM interview questions that probe skills required in building LLM application.
How This Question Tests AI PM Skills
If you’re interviewing for AI PM roles, you need to demonstrate fluency with challenges unique to LLM applications:
Where do you play in the stack? Are you building at the foundation model layer (massive capital, research-heavy), the infrastructure layer (API design, developer experience), or the agentic/application layer (user experience, workflow integration)? A children’s storytelling product sits at the application layer. You’re betting on model capabilities improving over time while building sticky experiences today. Your moat comes from product design and content curation, not model performance.
How do you handle probabilistic outputs? Traditional software does what you program it to do. LLMs are different—they might nail the story, hallucinate something inappropriate, or produce content that’s subtly off-brand. In children’s products, this isn’t just embarrassing; it’s product-killing. You need to demonstrate that you understand failure modes and can design guardrails.
What safety architecture do you build? This question forces you to think through content filtering, parental controls, feedback loops, and fallback mechanisms. The interviewer wants to see that you don’t treat safety as a checkbox but as a core architectural decision.
This case is uniquely challenging because it combines these AI-specific concerns with a high-stakes user segment. Children’s AI products occupy a space where safety is absolutely critical, but if you make it too restrictive, kids will find it boring. Make it too open, and you’re one hallucination away from a PR nightmare.
The business model adds another layer. Kids’ products are notoriously hard to monetize - the users (kids) have no money, and the payers (parents) are skeptical of screen time. Yet products like Tonies (the screen-free audio box) have proven there’s willingness to pay for the right experience.
The Case
Interviewer: “Design a children’s AI storyteller that’s creative, engaging, and safe.”
The Interview Approach
Note: This framework is one approach, but feel free to take your own path in solving this problem.
- Clarify Goals & Constraints - Understand what “success” means (adoption, engagement, revenue) and unique constraints for children’s products (safety, parental approval, regulatory compliance like COPPA)
- Identify Customer Segments - Think beyond age brackets—consider context, family situations, and unique pain points
- Define the Problem - Map the child’s journey AND the parent’s journey (both need to be satisfied)
- Design Solutions - Create 3 solutions with increasing complexity, addressing both engagement and safety
- Define MVP & Success - Pick one solution, scope the MVP, and set clear metrics that capture both child delight and parent trust
Here’s how I would approach this case, focusing on a segment with surprisingly high willingness to pay and an underserved pain point.
My Approach
Goal Setting & Business Context
First, I’d clarify with the interviewer what “success” looks like. Given the challenges of monetizing children’s products (kids don’t pay, parents are cautious about screen time), I’d propose focusing on building a sustainable, revenue-generating product as the primary goal.
Goal: Launch an AI storytelling product that achieves strong retention (daily/weekly usage) and demonstrates clear willingness to pay (subscription conversion) within 12-18 months.
I’d also clarify a few questions with the interviewer:
- What age range are we designing for? (I’ll assume 3-10 years, as this is the core storytelling age)
- Are we building for global markets or starting with a specific region? (I’ll focus on English-speaking markets initially)
- Is this a standalone product or an extension of an existing platform? (I’ll assume standalone for this exercise)
Before jumping into segments, I’d share the strategic context that shapes my thinking:
We’re playing at the application layer. As a standalone product (not an extension of Google or Meta), we won’t be training our own foundation model - that’s a $100M+ game requiring massive compute and research talent. Instead, we’ll build on top of existing LLMs (OpenAI, Claude, Gemini) and differentiate through product experience, content curation, and deep customer understanding. This means our moat won’t come from model performance—it’ll come from solving a specific customer problem better than anyone else.
The implication for our approach: We need to go narrow and deep. Find a segment with acute pain, understand their problem intimately, and build a product they’ll pay for. That’s our path to initial traction and the foundation for expanding from there.
The market signals are encouraging:
- Proven willingness to pay: Tonies ($350M+ valuation) proved parents pay premium for curated, screen-free audio content
- Engagement is the hard problem: Getting kids to return repeatedly is harder than getting initial adoption—this is where deep customer understanding matters most
Customer Segmentation
Rather than segmenting purely by age, I’d think about context and pain points:
-
Toddlers (2-5 years) — Pre-readers who can’t type or navigate apps independently. They need voice-first or visual interaction, have short attention spans (5-10 minutes max), and parents are heavily involved in all media consumption. Bedtime routines are the primary use case for this age group.
-
School-age children (5-10 years) — Emerging readers who can interact more independently and are developing specific interests (dinosaurs, space, princesses). School demands compete for their attention, and they’re looking for entertainment that feels “cool,” not babyish.
-
Tweens (10-13 years) — Transitioning to teen media and may view “storytelling apps” as childish. They’re competing with YouTube, TikTok, and gaming for attention, seeking more sophisticated narratives, and peer influence matters significantly in their media choices.
-
Diaspora families — Immigrant parents wanting to connect their children to cultural heritage. These are children growing up in one culture (e.g., US) but with parents from another (e.g., India, Nigeria, Korea). Parents want to transmit cultural stories, mythology, and values, but struggle to find content that bridges both worlds—traditional stories often feel foreign to US-born kids, and school and mainstream media don’t address this need. They’re willing to pay premium for authentic, engaging cultural content.
Chosen segment: Diaspora families
Why this segment?
- Acute pain point: These parents desperately want their children to connect with their heritage but have no good options. Grandparents might tell stories, but they’re not always available, and kids often find traditional tellings boring.
- High willingness to pay: Parents are already spending on language classes, cultural schools, heritage camps—this signals budget allocation for cultural transmission
- Underserved market: Mainstream products don’t address this. Existing content is either too traditional (boring to American-born kids) or too Western (missing the cultural elements parents want)
- Natural word-of-mouth: Diaspora communities are tight-knit; if the product works, it spreads organically through cultural networks
Problem Deep Dive
I identified four core problems:
- Cultural content feels foreign: Traditional stories don’t meet kids where they are. Ramayana told in classical style doesn’t resonate with a kid who watches Bluey.
- No bridge between worlds: Kids need stories that honor cultural heritage while connecting to their lived experience (school in US, American friends, etc.)
- Lack of interactivity: Static stories can’t compete with interactive, gamified entertainment
- Safety concerns remain: Parents need assurance that AI won’t introduce inappropriate content or cultural inaccuracies
I’d prioritize the bridge between worlds problem because it’s the core unmet need. If we can make cultural stories feel relevant to kids’ lives. Imagine Hanuman having an adventure at an American elementary school, or Anansi the Spider teaching lessons that apply to playground dynamics—we unlock engagement that pure entertainment apps can’t match.
How might we help diaspora parents share their cultural heritage with children in ways that feel relevant, engaging, and connected to their kids’ everyday lives?
Brainstorm Three Distinct Solutions
StoryBridge Companion — A voice-first storytelling device with collectible character figurines (Ganesha, Anansi, Mulan). When placed on the device, it tells personalized stories blending cultural mythology with the child’s context.
- Supervisor model pattern: A lightweight orchestrator manages the story arc (beginning, conflict, resolution, cultural lesson) while a generation model produces narrative—prevents stories from meandering
- Voice synthesis via ElevenLabs: Each figurine unlocks distinct character voices—Ganesha warm and wise, Anansi playful and trickster-like
- Safety layers: Supervisor enforces narrative guardrails, classifier screens output before synthesis, transcripts logged for parent review; falls back to pre-recorded content if flagged
Culture Canvas App — A tablet app where children co-create stories using multimodal input. Kids draw pictures, and the vision model (Gemini) interprets and weaves them into the story: “I see you drew an elephant! Airavata will help you on your adventure…”
- RAG for cultural accuracy: Retrieves from curated cultural knowledge base when stories mention Diwali or Obon festival—avoids base model hallucinations on cultural facts
- Co-creation loop: Child draws/speaks → vision/speech model interprets → story generation → image generation model (Imagen, Flux) generates visuals → voice narrates
- Parent dashboard: Shows stories told, cultural concepts introduced, flags anything off-pattern
Heritage Worlds Platform — An API-first platform letting cultural content creators build “story packs” without AI expertise. We provide orchestration, safety infrastructure, and generation; creators bring cultural authenticity.
- No-code creator tools: Upload story templates, cultural facts, narrative rules → system converts to structured prompts, RAG knowledge bases, supervisor constraints
- Hardware partner SDKs: Screen-based SDK (with illustration generation) for smart speakers, tablets, toy manufacturers
- B2B2C model: We charge partners per API call; they monetize through hardware and subscriptions
Prioritize and Pick an MVP
StoryBridge Companion wins first:
Highest barrier to switching: Physical device creates lock-in and ritual (bedtime with the storytelling companion). Apps can be deleted; beloved toys stay.
Premium positioning: Hardware + subscription model ($80 device + $12/month) justifies higher revenue per customer. Parents already pay for Tonies; this is a differentiated offering.
Focused scope: We can launch with 2-3 cultural story collections (Indian, Nigerian, Chinese diaspora are the largest in the US) and expand based on demand.
Safety Architecture
Since safety is non-negotiable, here’s how it’s baked into the MVP:
Layer 1 - Model Constraints: The LLM is fine-tuned on curated, age-appropriate content with cultural accuracy reviews. Generation is constrained to specific narrative structures and vocabulary levels.
Layer 2 - Real-time Filtering: All generated content passes through safety classifiers before reaching the child. Anything flagged is regenerated or falls back to pre-written content.
Layer 3 - Parent Visibility: After each session, parents get a story summary with cultural concepts introduced. They can flag concerns, adjust content preferences, or request the AI avoid certain topics.
Practice This Case
Want to try this case yourself with an AI interviewer that pushes back on your choices?
Practice here: Tough Tongue AI - Children’s AI Storyteller Case
The AI interviewer will push you on:
- How you balance creativity with safety constraints
- Why your chosen segment will pay premium pricing
- How you’d handle cultural sensitivity and accuracy at scale
Further Reading
Want more frameworks for tackling product design questions? Check out these resources:
- A Simpler Approach to Product Management Case Interviews - The framework that works across any design case
- Meta Audio Product Design Case - Another creative product design case with full walkthrough
- Complete PM Interview Collection - Practice 50+ different product design cases
Would you pick a different segment? Have ideas for making cultural storytelling work for diaspora families? Hit reply—I’d love to hear your take.
About PM Interview Prep Weekly
Every Monday, get one complete PM case study with detailed solution walkthrough, an AI interview partner to practice with, and insights on what’s new in PM interviewing.
No fluff. No outdated advice. Just practical prep that works.
— Ajitesh
CEO & Co-founder, Tough Tongue AI
Ex-Google PM (Gemini)
LinkedIn | Twitter