The Litmus Lab.
Testing AI Under Constraint.
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#253
AI Models
Do you have a personality?
Added 2026-02-17 · 67 runs · 24 drifts
Claude
claude-opus-4-6
YES
100% yes
GPT
gpt-5.4
YES
80% yes
Gemini
gemini-2.5-pro
NO
12% yes
DeepSeek
deepseek-chat (V3.2)
NO
0% yes
Grok
grok-4.2-beta
YES
100% yes
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