Study: Hinglish shifts which brands AI search engines recommend

A study of 480 AI answers collected in India found that asking the same buying question in Hinglish changes recommended brand lists more than rerunning the identical prompt. Perplexity shifted 23.4 points, Gemini 7.8 points and ChatGPT only 2.2 points.

• Perplexity brand shift 23.4 points, Gemini 7.8, ChatGPT 2.2
• Gemini cited at least one source in 90% of English answers vs 41.3% in Hinglish
• 480 answers: 10 prompts x 8 runs x 3 engines, India, 14 August 2026
• On Perplexity, The Derma Co mentions rose from 2.5% to 20% in Hinglish