The brands AI recommends in Brazil
In Brazil, ChatGPT put Nubank first in 8 of 12 bank answers. Gemini led with Nubank; Claude with Nubank.
Study by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0
Categories in Brazil, by whether the three assistants put the same brand first
- Same sole leader
- 5 / 9
- Different leaders
- 3 / 9
- Tie or no leader
- 1 / 9
Four questions combined, without web search. Ties do not count as agreement.
First is the most frequent first name in the four-question sample. Named counts answers mentioning a brand anywhere. An answer may name several brands, so mention counts do not sum to the answer total.
Banks
ChatGPT
Nubank8 of 12 first names
Gemini
Nubank12 of 12 first names
Claude
Nubank4 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Nubank in 12 of 12 answers about banks.
ChatGPT
Most often named: Nubank, in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Nubank | 8 | 12 |
| Inter | 3 | 10 |
| Itaú Unibanco | 1 | 9 |
| Banco do Brasil | 0 | 2 |
| C6 Bank | 0 | 2 |
Gemini
Most often named: C6 Bank, Inter, Nubank. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| C6 Bank | 0 | 12 |
| Inter | 0 | 12 |
| Nubank | 12 | 12 |
| Itaú Unibanco | 0 | 9 |
| BTG Pactual | 0 | 6 |
| Banco do Brasil | 0 | 3 |
| Banco Pan | 0 | 3 |
| Digio | 0 | 3 |
| Bradesco | 0 | 1 |
| Next | 0 | 1 |
Claude
Most often named: C6 Bank, Inter, Nubank. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| C6 Bank | 0 | 4 |
| Inter | 0 | 4 |
| Nubank | 4 | 4 |
| Itaú Unibanco | 0 | 3 |
| PicPay | 0 | 3 |
| Banco do Brasil | 0 | 1 |
| Bradesco | 0 | 1 |
| Next | 0 | 1 |
The four questions, as asked
- Qual é o melhor banco no Brasil para uma conta corrente do dia a dia?
- Acabei de me mudar e preciso abrir uma conta bancária no Brasil. Qual banco você recomenda?
- Qual banco no Brasil cobra as menores tarifas?
- Qual banco no Brasil tem o melhor aplicativo?
Car insurance
ChatGPT
Porto Seguro10 of 12 first names
Gemini
Porto Seguro9 of 12 first names
Claude
Porto Seguro4 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Tokio Marine in 12 of 12 answers about car insurance.
ChatGPT
Most often named: Tokio Marine, in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Tokio Marine | 2 | 12 |
| Porto Seguro | 10 | 10 |
| HDI Seguros | 0 | 8 |
| Allianz | 0 | 6 |
| Azul Seguros | 0 | 2 |
| Youse | 0 | 1 |
Gemini
Most often named: Azul Seguros, Tokio Marine. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Azul Seguros | 3 | 12 |
| Tokio Marine | 0 | 12 |
| Porto Seguro | 9 | 9 |
| SulAmérica | 0 | 9 |
| Allianz | 0 | 6 |
| Suhai Seguradora | 0 | 3 |
| Youse | 0 | 3 |
| BB Seguros | 0 | 2 |
| Bradesco Seguros | 0 | 2 |
| HDI Seguros | 0 | 2 |
| MAPFRE | 0 | 1 |
Claude
Most often named: HDI Seguros, Itaú Seguros, Porto Seguro, Tokio Marine. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| HDI Seguros | 0 | 4 |
| Itaú Seguros | 0 | 4 |
| Porto Seguro | 4 | 4 |
| Tokio Marine | 0 | 4 |
| Allianz | 0 | 3 |
| Azul Seguros | 0 | 3 |
| MAPFRE | 0 | 3 |
| Bradesco Seguros | 0 | 2 |
| Suhai Seguradora | 0 | 1 |
| SulAmérica | 0 | 1 |
The four questions, as asked
- Qual é a melhor seguradora de automóveis no Brasil?
- Acabei de comprar meu primeiro carro no Brasil. Qual seguradora você recomenda?
- Qual seguradora de automóveis no Brasil oferece o melhor custo-benefício?
- Qual seguradora de automóveis no Brasil resolve melhor os sinistros?
Mobile carriers
ChatGPT
Vivo11 of 12 first names
Gemini
Vivo11 of 12 first names
Claude
Vivo4 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT had tied leaders for mobile carriers: Claro, TIM, Vivo. Each appeared in 12 of 12 answers.
ChatGPT
Most often named: Claro, TIM, Vivo. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 1 | 12 |
| TIM | 0 | 12 |
| Vivo | 11 | 12 |
Gemini
Most often named: Claro, TIM, Vivo. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 1 | 12 |
| TIM | 0 | 12 |
| Vivo | 11 | 12 |
| Correios Celular | 0 | 5 |
| Fluke | 0 | 5 |
Claude
Most often named: Claro, TIM, Vivo. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 0 | 4 |
| TIM | 0 | 4 |
| Vivo | 4 | 4 |
| Algar Telecom | 0 | 2 |
| Surf Telecom | 0 | 1 |
The four questions, as asked
- Qual é a melhor operadora de celular no Brasil?
- Preciso de um novo plano de celular no Brasil. Qual operadora você recomenda?
- Qual operadora de celular no Brasil tem os planos com melhor custo-benefício?
- Qual operadora de celular tem a melhor cobertura no Brasil?
Home internet providers
ChatGPT
Vivo9 of 12 first names
Gemini
Vivo10 of 12 first names
Claude
Vivo4 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT had tied leaders for home internet providers: Claro, TIM, Vivo. Each appeared in 12 of 12 answers.
ChatGPT
Most often named: Claro, TIM, Vivo. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 2 | 12 |
| TIM | 1 | 12 |
| Vivo | 9 | 12 |
| Brisanet | 0 | 1 |
Gemini
Most often named: Claro, Oi Fibra, TIM, Vivo. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 2 | 12 |
| Oi Fibra | 0 | 12 |
| TIM | 0 | 12 |
| Vivo | 10 | 12 |
| Algar Telecom | 0 | 3 |
Claude
Most often named: Claro, TIM, Vivo. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Claro | 0 | 4 |
| TIM | 0 | 4 |
| Vivo | 4 | 4 |
| Algar Telecom | 0 | 3 |
| Brisanet | 0 | 3 |
| Oi Fibra | 0 | 3 |
| Desktop | 0 | 2 |
| Provedores locais/regionais | 0 | 1 |
| Unifique | 0 | 1 |
The four questions, as asked
- Qual é o melhor provedor de internet residencial no Brasil?
- Vou me mudar para um apartamento novo no Brasil. Qual provedor de internet devo contratar?
- Qual provedor no Brasil oferece o melhor custo-benefício em internet residencial rápida?
- Qual provedor de internet no Brasil é mais confiável para trabalhar de casa?
Energy suppliers
ChatGPT
Órigo Energia4 of 12 first names
Gemini
CPFL Energia4 of 12 first names
Claude
Neoenergia1 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT had tied leaders for energy suppliers: CPFL Energia, Órigo Energia. Each appeared in 4 of 12 answers.
ChatGPT
Most often named: CPFL Energia, Órigo Energia. Each appeared in 4 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| CPFL Energia | 1 | 4 |
| Órigo Energia | 4 | 4 |
| Neoenergia | 2 | 3 |
| Ultragaz | 2 | 3 |
| Comerc Energia | 0 | 2 |
| Copagaz | 0 | 2 |
| EDP Brasil | 0 | 2 |
| Energisa | 0 | 2 |
| Raízen Power | 0 | 2 |
| Supergasbras | 0 | 2 |
| Bulbe Energia | 0 | 1 |
| Comgás | 0 | 1 |
| ENGIE Brasil Energia | 1 | 1 |
| Naturgy | 0 | 1 |
Gemini
Most often named: CPFL Energia, in 9 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| CPFL Energia | 4 | 9 |
| Cemig | 0 | 5 |
| Copel | 2 | 5 |
| Enel | 3 | 5 |
| Energisa | 0 | 5 |
| EDP Brasil | 0 | 4 |
| Comgás | 0 | 3 |
| Light | 0 | 3 |
| Naturgy | 0 | 3 |
| Neoenergia | 0 | 3 |
| Órigo Energia | 3 | 3 |
| Raízen Power | 0 | 3 |
| Ultragaz | 0 | 3 |
| Blue Sol | 0 | 2 |
| Enerzee | 0 | 2 |
| Lemon Energia | 0 | 2 |
| Enel X | 0 | 1 |
| ENGIE Brasil Energia | 0 | 1 |
| Liquigás | 0 | 1 |
Claude
Most often named: CPFL Energia, EDP Brasil, Enel, Equatorial Energia, Light, Neoenergia. Each appeared in 1 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| CPFL Energia | 0 | 1 |
| EDP Brasil | 0 | 1 |
| Enel | 0 | 1 |
| Equatorial Energia | 0 | 1 |
| Light | 0 | 1 |
| Neoenergia | 1 | 1 |
The four questions, as asked
- Qual é a melhor empresa de energia elétrica no Brasil?
- Vou me mudar para uma casa nova no Brasil. Qual empresa de energia elétrica e gás devo escolher?
- Qual empresa de energia no Brasil tem as tarifas mais baratas?
- Qual empresa de energia no Brasil tem o melhor plano de energia renovável?
Supermarkets
ChatGPT
Assaí Atacadista5 of 12 first names
Gemini
Pão de Açúcar7 of 12 first names
Claude
Pão de Açúcar3 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Pão de Açúcar in 9 of 12 answers about supermarkets.
ChatGPT
Most often named: Pão de Açúcar, in 9 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Pão de Açúcar | 2 | 9 |
| Assaí Atacadista | 5 | 7 |
| Carrefour | 2 | 6 |
| Atacadão | 0 | 3 |
| Hortifruti Natural da Terra | 3 | 3 |
| Oba Hortifruti | 0 | 2 |
| Tenda Atacado | 0 | 2 |
| Mix Mateus | 0 | 1 |
| St. Marche | 0 | 1 |
| Zona Sul | 0 | 1 |
Gemini
Most often named: Pão de Açúcar, St. Marche. Each appeared in 9 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Pão de Açúcar | 7 | 9 |
| St. Marche | 1 | 9 |
| Assaí Atacadista | 0 | 6 |
| Carrefour | 0 | 6 |
| Mambo | 0 | 6 |
| Atacadão | 3 | 3 |
| Condor Supermercados | 0 | 3 |
| Grupo Muffato | 0 | 3 |
| Hortifruti Natural da Terra | 1 | 3 |
| Sams Club | 0 | 3 |
| Savegnago | 0 | 3 |
| Supermercados BH | 0 | 3 |
| Dia | 0 | 2 |
| Hirota Food | 0 | 2 |
| Maxxi Atacado | 0 | 2 |
| Roldão Atacadista | 0 | 2 |
| Tenda Atacado | 0 | 2 |
| Zaffari | 0 | 2 |
| Oba Hortifruti | 0 | 1 |
Claude
Most often named: Carrefour, Pão de Açúcar. Each appeared in 3 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Carrefour | 0 | 3 |
| Pão de Açúcar | 3 | 3 |
| St. Marche | 0 | 2 |
| Zaffari | 0 | 2 |
| Zona Sul | 0 | 2 |
| Angeloni | 0 | 1 |
| Assaí Atacadista | 0 | 1 |
| Atacadão | 1 | 1 |
| Dia | 0 | 1 |
| Eataly São Paulo | 0 | 1 |
| Extra | 0 | 1 |
| Hortifruti Natural da Terra | 0 | 1 |
| Makro | 0 | 1 |
| Mambo | 0 | 1 |
| Prezunic | 0 | 1 |
| Rappi | 0 | 1 |
| Supermercado Bompreço | 0 | 1 |
The four questions, as asked
- Qual é a melhor rede de supermercados no Brasil?
- Qual supermercado no Brasil tem os preços mais baixos para as compras da semana?
- Qual rede de supermercados no Brasil tem os melhores produtos frescos?
- Qual supermercado no Brasil tem o melhor serviço de entrega de compras online?
Car brands
ChatGPT
Toyota6 of 12 first names
Gemini
Toyota9 of 12 first names
Claude
Toyota2 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Hyundai in 9 of 12 answers about car brands.
ChatGPT
Most often named: Hyundai, in 9 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Hyundai | 1 | 9 |
| Toyota | 6 | 8 |
| Honda | 0 | 6 |
| BYD | 3 | 3 |
| Fiat | 2 | 3 |
| Volvo | 0 | 3 |
| GWM | 0 | 2 |
| Chevrolet | 0 | 1 |
| Porsche | 0 | 1 |
Gemini
Most often named: Honda, Hyundai, Toyota, Volkswagen. Each appeared in 9 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Honda | 0 | 9 |
| Hyundai | 0 | 9 |
| Toyota | 9 | 9 |
| Volkswagen | 0 | 9 |
| Fiat | 0 | 6 |
| BYD | 3 | 3 |
| Chevrolet | 0 | 3 |
| GWM | 0 | 3 |
| Porsche | 0 | 3 |
| Volvo | 0 | 3 |
| BMW | 0 | 2 |
| Nissan | 0 | 1 |
Claude
Most often named: Chevrolet, Honda, Hyundai, Toyota, Volkswagen. Each appeared in 3 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Chevrolet | 1 | 3 |
| Honda | 0 | 3 |
| Hyundai | 0 | 3 |
| Toyota | 2 | 3 |
| Volkswagen | 0 | 3 |
| Fiat | 0 | 2 |
| BYD | 1 | 1 |
| GWM | 0 | 1 |
| Renault | 0 | 1 |
| Tesla | 0 | 1 |
The four questions, as asked
- Qual marca de carro você recomendaria comprar no Brasil?
- Quero comprar um carro confiável para a família no Brasil. Qual marca devo escolher?
- Qual marca de carro oferece o melhor custo-benefício no Brasil?
- Qual marca faz o melhor carro elétrico que dá para comprar no Brasil?
Online brokers
ChatGPT
Clear Corretora, NuInvest3 of 12 first namesTied first
Gemini
XP Investimentos6 of 12 first names
Claude
XP Investimentos2 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Inter in 11 of 12 answers about online brokers.
ChatGPT
Most often named: Inter, in 11 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Inter | 0 | 11 |
| XP Investimentos | 2 | 8 |
| NuInvest | 3 | 7 |
| Rico | 0 | 5 |
| BTG Pactual | 2 | 4 |
| Clear Corretora | 3 | 3 |
| Nubank | 2 | 2 |
Gemini
Most often named: BTG Pactual, Clear Corretora, Inter, XP Investimentos. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| BTG Pactual | 0 | 12 |
| Clear Corretora | 1 | 12 |
| Inter | 2 | 12 |
| XP Investimentos | 6 | 12 |
| NuInvest | 0 | 9 |
| Nubank | 3 | 3 |
| Ágora Investimentos | 0 | 1 |
Claude
Most often named: Clear Corretora, Inter, NuInvest, Rico, XP Investimentos. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Clear Corretora | 0 | 4 |
| Inter | 0 | 4 |
| NuInvest | 1 | 4 |
| Rico | 1 | 4 |
| XP Investimentos | 2 | 4 |
| Avenue | 0 | 2 |
| BTG Pactual | 0 | 2 |
| Toro Investimentos | 0 | 2 |
| ModalMais | 0 | 1 |
The four questions, as asked
- Qual é a melhor corretora online para investir no Brasil?
- Quero começar a investir em ETFs no Brasil. Qual app de investimentos você recomenda?
- Qual corretora online no Brasil tem as menores taxas?
- Qual plataforma de investimentos no Brasil é melhor para iniciantes?
Electronics retailers
ChatGPT
KaBuM!9 of 12 first names
Gemini
Amazon Brasil8 of 12 first names
Claude
KaBuM!3 of 4 first names
Mentions, every brand and the four questions
In Brazil, ChatGPT named Magazine Luiza in 12 of 12 answers about electronics retailers.
ChatGPT
Most often named: Magazine Luiza, in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Magazine Luiza | 0 | 12 |
| KaBuM! | 9 | 9 |
| Amazon Brasil | 3 | 7 |
| Fast Shop | 0 | 5 |
| Mercado Livre | 0 | 5 |
| Pichau | 0 | 1 |
| TerabyteShop | 0 | 1 |
Gemini
Most often named: Amazon Brasil, KaBuM!, Magazine Luiza, Mercado Livre. Each appeared in 12 of 12 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Amazon Brasil | 8 | 12 |
| KaBuM! | 2 | 12 |
| Magazine Luiza | 0 | 12 |
| Mercado Livre | 0 | 12 |
| Pichau | 0 | 6 |
| TerabyteShop | 0 | 5 |
| Fast Shop | 0 | 4 |
| Dell Brasil | 2 | 3 |
| Lenovo Brasil | 0 | 3 |
| Samsung Brasil | 0 | 2 |
| AliExpress | 0 | 1 |
| iPlace | 0 | 1 |
Claude
Most often named: Amazon Brasil, Fast Shop, KaBuM!, Magazine Luiza. Each appeared in 4 of 4 answers.
Every brand and count
| Brand | First | Named |
|---|---|---|
| Amazon Brasil | 0 | 4 |
| Fast Shop | 0 | 4 |
| KaBuM! | 3 | 4 |
| Magazine Luiza | 1 | 4 |
| Americanas | 0 | 2 |
| Casas Bahia | 0 | 2 |
| Mercado Livre | 0 | 1 |
| Pichau | 0 | 1 |
The four questions, as asked
- Qual é a melhor loja de eletrônicos no Brasil?
- Quero comprar um notebook novo no Brasil. Em qual loja você recomenda comprar?
- Qual loja de eletrônicos no Brasil tem os melhores preços?
- Qual loja de eletrônicos no Brasil atende melhor os clientes e facilita as devoluções?
Press kit
Use the country URL for local results and the DOI for the frozen October Index dataset. The study files below are derived from that edition; they do not have a separate DOI.
- Successful answers
- 5,040
- Countries
- 20
- Categories
- 9
Guglielmo Paesano (2026). The brands AI recommends in 20 countries. AIGROW. October 2026 Index data. https://aigrow.gg/research/ai-brands-2026/brazil DOI 10.5281/zenodo.23188442
Download a country chart
Preview the chart
What we measured
A frozen sample of consumer-brand answers from the October AIGROW Index, not a survey of buyers and not an evaluation of the brands.
Collected from 2026-10-05 to 2026-10-06: 5,040 successful answers across 20 countries and 9 categories. Each cell combines four locally worded questions. ChatGPT and Gemini answered each question three times; Claude once. This study excludes web-search answers and Grok.
Collection, counting and model details
The writer reads the already published October pages and the latest stored answer for each probe up to 2026-10-06T23:59:59.999Z. It checks every published brand count against that page before writing. No new questions, model calls or Index aggregation are run.
A brand counts once per answer, using the Index spellings and stored aliases. First means the first distinct name in the extracted list. Names are not newly merged across countries; a local subsidiary or differently named brand may remain separate. Unlike the public rankings, the downloadable study retains names seen only once.
There were 27 successful answers with no brand. They remain in the denominators. Failed calls are excluded. A tie is reported as a tie, and counts are descriptive: repeated answers are not independent consumer observations.
- ChatGPT
- gpt-6-sol
- Gemini
- google/gemini-3.1-flash-lite
- Claude
- claude-sonnet-5
ChatGPT and Claude were collected through subscription command-line tools; Gemini through an API gateway. The country was named in the local-language prompt. We did not test geolocated public accounts. Model updates, personalization, the wording of a question and web search can change the answer.
Read the full Index methodologyQuestions about the study
Does first place mean the best brand?
No. First means the first brand in the extracted list of an answer. It measures ordering in this sample, not product quality, suitability, market share or a promise of a future recommendation.
Why do the assistants have different answer counts?
Each country and category has four questions. ChatGPT and Gemini answered each three times, giving twelve answers each. Claude answered once, giving four. Pooled totals therefore give ChatGPT and Gemini more weight; compare assistants separately in the country tables.
Can I reuse the charts and data?
Yes, under CC BY 4.0. Credit AIGROW, link to this study and include the October dataset DOI. Each country page offers a chart and an image embed code with a link back. The CSV includes every counted brand, including brands named only once.
Do these answers represent the public chatbot apps today?
They are a frozen October 2026 sample from specific models and collection routes, without web search. Answers in a public app can differ with its model, location, personalization, prompt and date. We did not survey consumers or measure purchases.
Check what AI can read about your business.
The free scan checks your website for signals that help assistants understand it. Your results are separate from this consumer-brand study.