Marlene Lutz
@marlutz.bsky.social
Phd student @ University of Mannheim | Social NLP | she/her
🌍 When simulating Hispanic personas, several LLMs spontaneously switched to Spanish — a pattern not seen for other groups.
This is the first systematic evidence of language-switching bias in persona prompting!
6/7
This is the first systematic evidence of language-switching bias in persona prompting!
6/7
October 31, 2025 at 5:45 PM
🌍 When simulating Hispanic personas, several LLMs spontaneously switched to Spanish — a pattern not seen for other groups.
This is the first systematic evidence of language-switching bias in persona prompting!
6/7
This is the first systematic evidence of language-switching bias in persona prompting!
6/7
📊Interview-style prompting also significantly improves alignment with real-world survey data!
4/7
4/7
October 31, 2025 at 5:45 PM
📊Interview-style prompting also significantly improves alignment with real-world survey data!
4/7
4/7
💡The good news: Interview-style prompting (Q&A format) and name-based priming (using culturally associated names instead of explicit labels) consistently:
✅ Reduces stereotyping
✅ Improves diversity of responses
3/7
✅ Reduces stereotyping
✅ Improves diversity of responses
3/7
October 31, 2025 at 5:45 PM
💡The good news: Interview-style prompting (Q&A format) and name-based priming (using culturally associated names instead of explicit labels) consistently:
✅ Reduces stereotyping
✅ Improves diversity of responses
3/7
✅ Reduces stereotyping
✅ Improves diversity of responses
3/7
⚖️LLMs still fall short when simulating marginalized identities.
Simulations of nonbinary, Hispanic, and Middle Eastern personas are more stereotyped and less diverse than those of other groups.
2/7
Simulations of nonbinary, Hispanic, and Middle Eastern personas are more stereotyped and less diverse than those of other groups.
2/7
October 31, 2025 at 5:45 PM
⚖️LLMs still fall short when simulating marginalized identities.
Simulations of nonbinary, Hispanic, and Middle Eastern personas are more stereotyped and less diverse than those of other groups.
2/7
Simulations of nonbinary, Hispanic, and Middle Eastern personas are more stereotyped and less diverse than those of other groups.
2/7
🚨New paper alert🚨
🤔 Ever wondered how the way you write a persona prompt affects how well an LLM simulates people?
In our #EMNLP2025 paper, we find that using interview-style persona prompts makes LLM social simulations less biased and more aligned with human opinions.
🧵1/7
🤔 Ever wondered how the way you write a persona prompt affects how well an LLM simulates people?
In our #EMNLP2025 paper, we find that using interview-style persona prompts makes LLM social simulations less biased and more aligned with human opinions.
🧵1/7
October 31, 2025 at 5:45 PM
🚨New paper alert🚨
🤔 Ever wondered how the way you write a persona prompt affects how well an LLM simulates people?
In our #EMNLP2025 paper, we find that using interview-style persona prompts makes LLM social simulations less biased and more aligned with human opinions.
🧵1/7
🤔 Ever wondered how the way you write a persona prompt affects how well an LLM simulates people?
In our #EMNLP2025 paper, we find that using interview-style persona prompts makes LLM social simulations less biased and more aligned with human opinions.
🧵1/7