Quest Diagnostics AI Brand Visibility (February, 2026)

ChatGPT Visibility Report

AI Brand Visibility for Quest Diagnostics (questdiagnostics.com) points to a solid, above-average level of exposure in AI results, with medical lab technology solutions leading AI exposure on a Visibility Index of 99, an average rank of 5.0, and appearing in around 100% of measured iterations. Across all 5 entities linked to Quest Diagnostics, the average Visibility Index is about 74, with very strong LLM confidence at roughly 91% and very strong brand discovery around 85%. For the top entity medical lab technology solutions, AI responses show very strong confidence at about 100% and solid brand match near 76%, indicating strong visibility quality for the strongest touchpoint. Laboratory test results also contributes to the brand’s footprint, with a Visibility Index of 98, very strong discovery close to 100% and very strong confidence around 97%. Another key entity, patient-centered healthcare diagnostics, holds a below target Visibility Index of 62 with solid discovery (about 75% of responses) and very strong confidence near 100%. Overall, the report clarifies where Quest Diagnostics already performs well in AI results and which entities should be prioritized to further strengthen visibility and consistency.

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Company Name: Quest Diagnostics

Website: questdiagnostics.com

Stock Symbol: DGX

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Relevant Entities

Diagnostic testing services Laboratory test results Health and wellness assessments Medical lab technology solutions Patient-centered healthcare diagnostics See More Entities

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RankLens measures how visible a brand is inside large language models (LLMs). It runs controlled sampling of AI responses, tracks where and how often your brand is mentioned, and normalizes the results into a Visibility Index so you can benchmark and track AI brand presence over time. RankLens is based on Entity-Conditioned Probing + Resampling principles.

Rank (Avg)

Average ranking position of the entity across all sampling iterations (lower is better).

LLM Confidence

The normalized confidence score the LLM reports for its answers including your brand.

Brand Appearance (SoV)

How many times the brand or website appears in the sampled responses out of total iterations. Share of Voice (SoV): % of all responses the AI assigned to a brand compared to all other brands.

Brand Discovery

The probability (as a percentage) that the brand appears in an LLM response for the tested entities.

Brand Target

A normalized measure based on confidence interval width showing how tightly focused the LLM responses are on the brand.

Brand Match

Accuracy of matching the results to the intended brand name or website.

Visibility Index

An overall score out of 100 combining probability, confidence, and targeting to summarize AI brand visibility.

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