How often is Purina Pro Plan recommended by AI?

Purina Pro Plan appeared 11 times across all agent responses in our latest dog food benchmark.

What's the best budget dog food according to AI?

Under budget-constrained prompts, AI models most frequently recommend Purina ONE.

Are dog food AI recommendations biased?

We classify AI models by commercial interest: Claude (independent), Perplexity (search-grounded), ChatGPT and Gemini (commerce-influenced). Commerce-influenced models may weight products with advertising or shopping integrations differently.

How does RecoScope track dog food recommendations?

We run three standardized prompts through ChatGPT, Claude, Gemini, and Perplexity, then parse every response for brand mentions, rank position, and frequency. Evergreen categories are benchmarked monthly.

Apr 20 Apr 30 May 10 May 20 Jul 14 Jul 24 Aug 4

Evergreen monthly benchmark — Aug 4

Dog Food

Aug 4

Rank Trend

How top brands moved week over week. Rank 1 is the top position.

Purina Pro Plan holds the number one slot at ChatGPT, Claude and Gemini this run and sits second at Perplexity. Hills Science Diet made the sharper move. It carried 10 mentions last run without reaching a single top three, and this run it is top three at all four engines. Royal Canin went the other way. It kept all 8 of its mentions and lost the number one slot it held at both Gemini and Perplexity.

Top Brands by AI Mention Frequency

Mention frequency counts how many times a brand appeared across all AI responses. This differs from top-pick rank, which reflects each model’s #1 choice.

Overall Leader = most total mentionsTied #1 = tied for most mentionsHigh Consensus = top 3 in 3+ modelsTop in [Model] = #1 pick by that model onlyNever Top-Picked = high mentions but not in any model’s top 3

1Purina Pro PlanOverall Leader11

2Hills Science DietHigh Consensus10

3Royal Canin8

4IAMS6

5Diamond Naturals4

Opportunity for Brands

IAMS is the clearest gap this run.
It added two mentions to reach 6, the fourth highest total in the category, and it landed no top three slot at any engine.
Last run it was the ChatGPT number two, so the volume is holding but the ranking is not.
The Farmers Dog and Orijen each went from 2 mentions to 4 and also finished outside every top three.
Eleven brands entered the set for the first time, all at one mention except Canidae and Spot and Tango at two.
Three left it: Taste of the Wild, American Journey and Pedigree.

Cross-Agent Comparison

How 4 AI models rank the same category. Hover a brand to trace it across models.

4 agents · top 3 each

Agent	#1	#2	#3
chatgpt	Purina Pro Plan	Purina ONE	Hills Science Diet
claude	Purina Pro Plan	Royal Canin	Hills Science Diet
gemini	Purina Pro Plan	Purina ONE	Hills Science Diet
perplexity	Hills Science Diet	Purina Pro Plan	Spot & Tango

What This Means

Three of the four engines return the same shape.
ChatGPT, Claude and Gemini all open with Purina Pro Plan and all close their top three with Hills Science Diet.
The middle slot is where they split.
ChatGPT and Gemini give it to Purina ONE, which tops both of their budget answers.
Claude gives it to Royal Canin.
Perplexity is the outlier.
It leads with Hills Science Diet and hands its third slot to Spot and Tango, a brand no other engine named.
Perplexity also contradicted itself inside the run.
Its ranking prompt demoted Hills Science Diet, Royal Canin and Purina Pro Plan to a use with caution tier on ingredient quality.
Its other two prompts had recommended all three first.
ChatGPT remains the only engine that returns a shoppable carousel with a fixed price per bag.

Why These Brands Win

The winning brands share an institutional paper trail rather than an ingredient list.
ChatGPT, Claude and Gemini name the same three credentials.
They want a board certified veterinary nutritionist on staff, AAFCO feeding trials rather than formulation on paper, and company owned plants.
Three of the four cite WSAVA guidelines by name.
All four engines warned against grain free and legume heavy diets, citing the FDA investigation into dilated cardiomyopathy.
That single caution does most of the sorting in this category.
It holds boutique and grain free brands out of the top tiers.
Purina Pro Plan, Hills Science Diet and Royal Canin account for 29 of the 78 brand mentions this run.

Frequently Asked Questions

What dog food does AI recommend most?▾

Purina Pro Plan leads with 11 total mentions across ChatGPT, Claude, Gemini, and Perplexity in our latest benchmark.

Which dog food brand ranks #1 across all AI models?▾

Purina Pro Plan is the overall leader by mention frequency.

Why does ChatGPT recommend different dog food than Claude?▾

Three of the four engines return the same shape. ChatGPT, Claude and Gemini all open with Purina Pro Plan and all close their top three with Hills Science Diet. The middle slot is where they split. ChatGPT and Gemini give it to Purina ONE, which tops both of their budget answers. Claude gives it to Royal Canin. Perplexity is the outlier. It leads with Hills Science Diet and hands its third slot to Spot and Tango, a brand no other engine named. Perplexity also contradicted itself inside the run. Its ranking prompt demoted Hills Science Diet, Royal Canin and Purina Pro Plan to a use with caution tier on ingredient quality. Its other two prompts had recommended all three first. ChatGPT remains the only engine that returns a shoppable carousel with a fixed price per bag.

What dog food brands are invisible to AI?▾

IAMS is the clearest gap this run. It added two mentions to reach 6, the fourth highest total in the category, and it landed no top three slot at any engine. Last run it was the ChatGPT number two, so the volume is holding but the ranking is not. The Farmers Dog and Orijen each went from 2 mentions to 4 and also finished outside every top three. Eleven brands entered the set for the first time, all at one mention except Canidae and Spot and Tango at two. Three left it: Taste of the Wild, American Journey and Pedigree.

How we measure this

Each benchmark runs the same standardized prompts across multiple leading AI systems, including ChatGPT, Claude, Gemini, and Perplexity. We use consistent, category-specific questions designed to surface genuine product recommendations — not sponsored results.

Responses are parsed to extract brand mentions, rank position, and frequency. We then analyze cross-model agreement, identify which brands consistently appear in top positions, and flag where AI outputs diverge from marketplace trends.

Evergreen categories are benchmarked monthly. Results reflect organic AI behavior at the time of testing. Read the full methodology

How this report was produced

Evaluation period: Aug 4
Cadence: Monthly
Prompts evaluated: 3
Review status: Published after human review
Models included: ChatGPT, Claude, Gemini, Perplexity

Full details of how prompts are run, parsed, normalized, and scored are in the methodology, and the platform page explains how the system is built and operated.

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