Why has the average conversation length on Character.ai declined from 12 messages to 8 messages per session this month?

Introduction

The decline in average conversation length on Character.ai from 12 to 8 messages per session this month is a concerning trend that requires immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term and long-term implications for the product.

To tackle this issue, I'll follow a structured approach:

1. Clarify the problem and gather essential context
2. Rule out basic external factors
3. Analyze the product and user journey
4. Break down the metric components
5. Prioritize data gathering
6. Form and evaluate hypotheses
7. Conduct root cause analysis
8. Propose validation methods and next steps
9. Present a decision framework
10. Outline a resolution plan

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be a recent product change. Have there been any significant updates or feature releases in the past month?

Why it matters: Recent changes could directly impact user behavior. Expected answer: Yes, there was a major UI overhaul. Impact on approach: If confirmed, we'd focus on analyzing the impact of specific UI changes.

• Considering user segments, I'm curious about the distribution. Has this decline been uniform across all user types, or are certain segments more affected?

Why it matters: Identifying affected segments helps narrow down potential causes. Expected answer: The decline is more pronounced among new users. Impact on approach: We'd investigate onboarding processes and new user experience.

• Regarding the metric itself, I'm wondering about its stability. Has the definition or measurement of "conversation length" remained consistent over time?

Why it matters: Changes in measurement could lead to false conclusions. Expected answer: The metric definition has not changed. Impact on approach: We'd focus on actual user behavior changes rather than measurement issues.

• Thinking about external factors, I'm curious about any recent marketing campaigns. Have there been any significant changes in user acquisition strategies or channels?

Why it matters: New user sources could affect engagement patterns. Expected answer: A new TikTok campaign was launched last month. Impact on approach: We'd analyze the quality and engagement of users from this new channel.