Pfizer
PharmaceuticalsPrompt performance
Position when mentioned · grouped by stageHead to head
Who the models name more often, side by side.
Is this you?
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Healthcare, nearest on the index.
What the numbers say
Pfizer scores 55.7 out of 100 on the Fameproof index, ranking 38 of 186 companies measured in the run of 26 October 2026. The index is the mean of the per-model scores below.
Visibility is uneven across models: Gemini scores it 70.0 while ChatGPT scores it 36.0, a gap of 34.0 points. A brand that is strong on one model and weak on another has a different problem from one that is mid-table everywhere.
Gemini names Pfizer in 73% of answers and places it early enough to score 55% on prominence; ChatGPT names it in 30%.
Across the 24-prompt panel there are 4 prompts where at least one model does not name Pfizer at all — those are the answers a competitor is winning instead, and the prompt table above shows which.
Measured inside pharmaceuticals rather than the wide healthcare pool, Pfizer scores 82.3 — the fairer question for a buyer already shopping that market, though it cannot be compared across markets.
Questions about this score
What is Pfizer's AI visibility score?
Pfizer scores 55.7 out of 100 on the Fameproof index, ranked 38 of 186 companies, measured on 26 October 2026 across Claude and ChatGPT and Gemini.
Which AI model mentions Pfizer most?
Gemini, at 70.0 out of 100, naming Pfizer in 73% of the answers in its panel. The per-model breakdown is above.
How is Pfizer's score measured?
With a panel of 24 category questions asked 4 times per model — never questions that name Pfizer, because a prompt that names you guarantees a mention. The score combines how often it is named, how early in the answer, how much of the topic it covers, and how consistent the result is between repetitions. Full methodology.