Diet Coke vs Pepsi Zero Sugar
How do Diet Coke and Pepsi Zero Sugar compare inside AI answers? Across the latest Famewise run, here is each brand's visibility in ChatGPT, Claude and Gemini — and how often they are named together.
Relative share of voice
Of the 67 mentions across the two brands, Diet Coke takes 55% and Pepsi Zero Sugar 45%. They are named together in 17 answers.
Category leaderboards
How this is measured
Famewise generates the category-level questions consumers ask AI assistants, then asks them to current OpenAI GPT, Anthropic Claude and Google Gemini models — each question with web search on and off. An extraction model records every brand named in every answer, the position of its first mention, and the sentiment toward it. Brands are ranked by share of voice: the number of answers that mention them. Every number reflects the latest scheduled run.
Frequently asked questions
Is Diet Coke or Pepsi Zero Sugar more visible in AI answers?
In the latest Famewise run, Diet Coke is named in 37 AI answers and Pepsi Zero Sugar in 30. Diet Coke has the higher share of voice. The two are named together in 17 answers.
How are Diet Coke and Pepsi Zero Sugar measured?
Famewise asks current OpenAI GPT, Anthropic Claude and Google Gemini models the questions consumers ask in these brands' categories — with and without web search — and records every brand each answer names, its position, and the sentiment toward it.
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