Coke Zero vs Diet Coke
How do Coke Zero and Diet Coke 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 49 mentions across the two brands, Coke Zero takes 24% and Diet Coke 76%. They are named together in 7 answers.
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 Coke Zero or Diet Coke more visible in AI answers?
In the latest Famewise run, Coke Zero is named in 12 AI answers and Diet Coke in 37. Diet Coke has the higher share of voice. The two are named together in 7 answers.
How are Coke Zero and Diet Coke 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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