GEO in Brazil: ChatGPT, Gemini, and Perplexity landscape
How Brazilian buyers use AIs to research — and what that changes for brands.
- Author
- By Equipe MencionAI
- Published
- Published on August 9, 2026
- Reviewed
- Reviewed on September 9, 2026
Mixed PT and EN research
Portuguese and English prompts produce different answers. Brazil benchmarks need both languages.
Models that matter
Google Search, ChatGPT, Gemini, Perplexity, Claude, DeepSeek, and Grok can produce different answers. Measure the services your buyers use instead of assuming one represents the Brazilian market.
Local sources
Test whether answers cite Brazilian media, reviews, marketplaces, and your own pages. Publish clear Portuguese content with verifiable claims, but do not treat any format or schema type as a ranking guarantee.
Next step
Define 10 category prompts in PT-BR, run MencionAI, and compare share of voice vs your top five competitors.
10 priority AI answer surfaces for GEO in Brazil
This is a practical list, not a universal ranking: ChatGPT; Google AI Mode and AI Overviews through Gemini and Google Search; Claude; Microsoft Copilot; Perplexity; DeepSeek; Grok; Meta AI; Character.AI; and Manus. The selection combines Similarweb's Brazil website-visit ranking for August 2026, a June 2026 estimated traffic analysis, and the FGVcia survey published in June 2025 on business use of Copilot, ChatGPT, and Gemini. Use only documented discovery controls: Googlebot and Google-Extended; OAI-SearchBot, ChatGPT-User, and GPTBot; Claude-SearchBot, Claude-User, and ClaudeBot; Bingbot for Microsoft search; PerplexityBot; and Meta-ExternalAgent. Do not invent directives for DeepSeek, Grok, Character.AI, or Manus without current official documentation. The models monitored by MencionAI are the set stated in the product, not this wider channel list.