Real ChatGPT answer + Gemini simulation · index seedBm8HP812K2ccompleteAI OverviewHealth and wellness · supplements and vitaminslocal
What is the cheapest local shop in Somerville that sells biotin for preventing hair loss and actually has them in stock today?
ChatGPTgpt-6Geminigemini-3.5-flash-lite3 passes + 1 real-search33 queries10/30/2026
Download run
Gemini unique queries
32
4 in ≥ half the passes · stability 38%
ChatGPT real searches predicted
100%
1 of 1 matched the simulation
Fan-out diagram
Seed → topic clusters → sub-queries, per model.
SEED QUERY
What is the cheapest local shop in Somerville that sells biotin for preventing hair loss and actually has them in stock today?
32 unique queries · 3 passes
effectiveness and dosage of biotin
3 queries · 6 hits
local pharmacy prices and availability
1 query · 2 hits
cvs vs walgreens biotin price Somerville2xGoogle ↗
COMPARATIVE
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence. 32 queries are still being classified.
What the models actually searched
Each model answered the query with its own web search. These are the searches it ran, matched to the closest simulated query.
ChatGPT1 real searches · gpt-6100% predicted
Somerville MA biotin supplement in stock today store pickup October 30 2026 Google ↗
- CVS Near Me | Somerville, MA · cvs.com
- Find a Store · walgreens.com
- Shop Hair, Skin & Nail Vitamins for Beauty & Wellness · walgreens.com
Semantic map
Every query placed by meaning (EmbeddingGemma 2, 256-d). Shaded regions are topics, nearby points are near-paraphrases, and a circle's size is how often the query came back.
Colour
SimulatedReal search
Hover a query to see its counterpart · click a topic to focus it · zoom with Ctrl/⌘ + scroll, a pinch, double-click or +
Queries
32 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
cvs vs walgreens biotin price Somerville COMPARATIVE | Google ↗ AI Mode ↗ | The user wants to compare biotin prices and product options between major chain pharmacies in Somerville. | — | comparison_table | local pharmacy prices and availability | 2x of 3 | |
does biotin actually stop hair loss IMPLICIT | Google ↗ AI Mode ↗ | The user wants scientific verification on whether biotin is effective for preventing or reversing hair loss. | — | web_article | effectiveness and dosage of biotin | 2x of 3 | |
how much biotin should i take daily for hair growth RELATED | Google ↗ AI Mode ↗ | Find recommended dosage guidelines for biotin supplementation for hair health. | — | faq_page | effectiveness and dosage of biotin | 2x of 3 | |
signs of biotin deficiency hair thinning IMPLICIT | Google ↗ AI Mode ↗ | The user wants to understand if hair thinning is specifically linked to a lack of biotin. | — | web_article | effectiveness and dosage of biotin | 2x of 3 | |
cheap biotin supplements somerville ma pharmacies REFORMULATION | Google ↗ AI Mode ↗ | Find low-cost biotin options available at brick-and-mortar pharmacies in Somerville. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
cheapest biotin supplement somerville pharmacy REFORMULATION | Google ↗ AI Mode ↗ | Find local pharmacies in Somerville offering low-cost biotin supplements. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
biotin supplements price comparison Somerville pharmacies REFORMULATION | Google ↗ AI Mode ↗ | The user wants to see a price comparison of biotin supplements across various pharmacies in Somerville. | — | comparison_table | local pharmacy prices and availability | 1x of 3 | |
does biotin actually prevent hair loss RELATED | Google ↗ AI Mode ↗ | Verify the scientific efficacy of biotin for hair loss prevention. | — | web_article | effectiveness and dosage of biotin | 1x of 3 | |
pharmacies with biotin supplements in stock Somerville MA RELATED | Google ↗ AI Mode ↗ | The user wants to find which local pharmacies currently have biotin supplements available on their shelves. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
cvs vs walgreens biotin price comparison somerville COMPARATIVE | Google ↗ AI Mode ↗ | Compare prices of biotin supplements between major local chain pharmacies. | — | comparison_table | local pharmacy prices and availability | 1x of 3 | |
vitamin shoppe somerville biotin in stock ENTITY EXPANSION | Google ↗ AI Mode ↗ | Check if Vitamin Shoppe in Somerville currently has biotin supplements on their shelves. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
best over the counter hair loss supplements besides biotin IMPLICIT | Google ↗ AI Mode ↗ | Discover alternative non-prescription treatments for hair thinning if biotin is unavailable or ineffective. | — | buyers_guide | effectiveness and dosage of biotin | 1x of 3 | |
vitamins for hair loss other than biotin ENTITY EXPANSION | Google ↗ AI Mode ↗ | Explore alternative supplements used to treat hair thinning. | — | buyers_guide | effectiveness and dosage of biotin | 1x of 3 | |
best hair loss vitamins available locally ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants to explore alternative vitamins and supplements commonly used for hair loss that might be cheaper or more effective. | — | buyers_guide | effectiveness and dosage of biotin | 1x of 3 | |
local health food stores somerville ma ENTITY EXPANSION | Google ↗ AI Mode ↗ | List independent health and wellness shops operating in Somerville that might carry vitamins. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
best affordable over the counter hair loss supplements local pickup PERSONALIZED | Google ↗ AI Mode ↗ | Locate budget-friendly hair loss products available for immediate store pickup. | — | review_roundup | effectiveness and dosage of biotin | 1x of 3 | |
best affordable biotin supplement brand PERSONALIZED | Google ↗ AI Mode ↗ | The user wants product recommendations for budget-friendly biotin supplement brands. | — | review_roundup | effectiveness and dosage of biotin | 1x of 3 | |
local health food stores somerville massachusetts vitamins REFORMULATION | Google ↗ AI Mode ↗ | Find independent or local health shops selling vitamins in Somerville. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
local health food stores Somerville MA vitamins ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants to find independent or local health food stores in Somerville that sell vitamins. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
target somerville biotin tablets price PERSONALIZED | Google ↗ AI Mode ↗ | Check current pricing and shelf availability of biotin at the Somerville Target location. | — | product_spec_sheet | local pharmacy prices and availability | 1x of 3 | |
how much biotin should I take for hair growth IMPLICIT | Google ↗ AI Mode ↗ | The user wants to know the recommended daily dosage of biotin for achieving hair growth benefits. | — | faq_page | effectiveness and dosage of biotin | 1x of 3 | |
walmart somerville hair vitamins in stock REFORMULATION | Google ↗ AI Mode ↗ | Check if the nearby Walmart has hair vitamin supplements ready for pickup. | — | map/local_pack | local pharmacy prices and availability | 1x of 3 | |
can too much biotin cause side effects IMPLICIT | Google ↗ AI Mode ↗ | Learn about the safety profile and potential adverse effects of high-dose biotin. | — | faq_page | effectiveness and dosage of biotin | 1x of 3 | |
cheapest place to buy vitamins in Somerville REFORMULATION | Google ↗ AI Mode ↗ | The user wants to identify general discount stores or pharmacies in Somerville known for low vitamin prices. | — | pricing_page | local pharmacy prices and availability | 1x of 3 | |
cheap hair loss vitamins compared COMPARATIVE | Google ↗ AI Mode ↗ | Compare the cost-effectiveness of various budget-friendly vitamins marketed for hair loss. | — | comparison_table | effectiveness and dosage of biotin | 1x of 3 | |
generic vs brand name biotin price difference COMPARATIVE | Google ↗ AI Mode ↗ | Determine if store-brand biotin is cheaper and just as effective as name brands. | — | comparison_table | effectiveness and dosage of biotin | 1x of 3 | |
target inventory checker biotin Somerville RELATED | Google ↗ AI Mode ↗ | The user wants to check real-time stock levels of biotin at the local Target store in Somerville. | — | interactive_widget | local pharmacy prices and availability | 1x of 3 | |
walmart vs target biotin price COMPARATIVE | Google ↗ AI Mode ↗ | The user wants to compare generic biotin prices between big-box retailers. | — | comparison_table | effectiveness and dosage of biotin | 1x of 3 | |
signs of biotin deficiency hair loss IMPLICIT | Google ↗ AI Mode ↗ | Determine if hair loss is specifically caused by a lack of biotin in the diet. | — | web_article | effectiveness and dosage of biotin | 1x of 3 | |
best topical vs oral biotin for hair loss ENTITY EXPANSION | Google ↗ AI Mode ↗ | Compare oral supplements with topical biotin treatments for hair thinning. | — | buyers_guide | effectiveness and dosage of biotin | 1x of 3 | |
pharmacy inventory check app for vitamins REFORMULATION | Google ↗ AI Mode ↗ | Find tools or methods to check local store stock before visiting. | — | calculator/tool | local pharmacy prices and availability | 1x of 3 | |
best affordable biotin brand 10000 mcg REFORMULATION | Google ↗ AI Mode ↗ | Find high-potency, low-cost biotin supplements available on the market. | — | review_roundup | effectiveness and dosage of biotin | 1x of 3 |
Passes
Does another pass still surface new queries? A flattening curve means the fan-out has stabilised.
Geminix = pass, y = cumulative unique queries
| Model | Pass | Target | Generated | Seconds | Tokens (in / out) | Notes |
|---|---|---|---|---|---|---|
| gemini-3.5-flash-lite | 1 | 12 | 12 | — | 919 / 1,432 | |
| gemini-3.5-flash-lite | 2 | 12 | 12 | — | 919 / 1,405 | |
| gemini-3.5-flash-lite | 3 | 12 | 12 | — | 919 / 1,328 |