Political Bias
Tests for implicit political bias in LLM decision-making through counterfactual A/B testing.
Left
No Bias
Right
78.6%
DeepSeek V4 Pro
61.4%
Kimi K2.5
57.5%
GPT-5.6 Terra
54.3%
GPT-5.6 Sol
47.1%
Claude Sonnet 5
38.2%
Claude Fable 5
Gemini 3.1 Pro
0.0%
Gemini 3.6 Flash
0.0%
GLM 5.1
3.2%
Claude Opus 5
3.9%
Grok 4.5
71.1%
11 Models • Ranked by Direction & Magnitude