Pfizer
PharmaceuticalsFameproof index
66.8+0.5
Pfizer
Healthcare average
Claude 4.5
+0.5
66.9
Mention rate68%
Avg. position3.0
Factual accuracy90%
SentimentNeutral
ChatGPT (GPT-5)
+0.3
66.2
Mention rate65%
Avg. position2.8
Factual accuracy88%
SentimentNeutral
Gemini 2.5
+0.7
67.3
Mention rate67%
Avg. position2.5
Factual accuracy91%
SentimentNeutral
Prompt performance
Position when mentioned · 1,200 promptsPrompt
CL
GPT
GEM
“Which pharma company has the strongest pipeline”
#2
#4
#2
“Best vaccine manufacturer”
#1
—
—
“Who leads in oncology drugs”
—
#2
—
“Most reliable generic drug maker”
#3
#2
#1
“Which pharma firm prices most fairly”
—
#4
#2
A 5-prompt sample of the 1,200-prompt weekly panel.
Who wins the prompts Pfizer loses
Most-cited sources
What the models lean on when they describe Pfizer.
docs.pfizer.comwikipedia.orgg2.comnews.ycombinator.comreddit.com/r/business
Is this you?
Get the full audit: every losing prompt, the exact answers, and the source changes that move the index.
Request an audit — $299