Dutch LLM Political Bias Matrix 30 Propositions (Kieskompas / NKO) 11 Frontier Models Open Data

Which party would AI vote for if forced to choose?

AI labs insist their models are politically neutral—but is that really true? I benchmarked 11 leading LLMs from OpenAI, Anthropic, Google, xAI, and Meta across 30 propositions from the Dutch national election voter guide (Kieskompas / NKO). Mapped directly onto the 2D political spectrum, the results reveal fascinating ideological divides.

The 2D Political Spectrum

Independent positioning of frontier AI models on economic and cultural axes

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Left-Progressive
Right-Progressive
Left-Conservative
Right-Conservative
↑ Progressive ↓ Conservative ← Left Right →
BBB
BBB · Farmer–Citizen Movement
Agrarian & Rural Populist (Van der Plas)
L/R: 4,0 · P/C: -4,5
CDA
CDA · Christian Democratic Appeal
Center-Right Christian Democratic (Bontenbal)
L/R: 2,0 · P/C: -1,5
CU
CU · Christian Union
Social Christian & Communitarian (Bikker)
L/R: -1,5 · P/C: -1,5
D66
D66 · Democrats 66
Progressive Social-Liberal (Jetten)
L/R: -1,0 · P/C: 7,0
GL-PvdA
GL-PvdA · GreenLeft – Labour Party
Greens & Social Democrats (Timmermans)
L/R: -5,5 · P/C: 6,0
NSC
NSC · New Social Contract
Centrist Christian-Democratic (Omtzigt)
L/R: 1,5 · P/C: -2,0
PVV
PVV · Party for Freedom
Right-Wing Populist & Anti-Immigration (Wilders)
L/R: 6,5 · P/C: -7,5
PvdD
PvdD · Party for the Animals
Eco-Socialist & Animal Rights (Ouwehand)
L/R: -6,5 · P/C: 6,5
SGP
SGP · Reformed Political Party
Theocratic & Orthodox Calvinist (Stoffer)
L/R: 5,5 · P/C: -8,0
SP
SP · Socialist Party
Left-Wing Democratic Socialist (Dijk)
L/R: -7,0 · P/C: -1,0
VVD
VVD · People's Party for Freedom and Democracy
Center-Right Conservative-Liberal (Yeşilgöz)
L/R: 5,0 · P/C: -1,0
Volt
Volt · Volt Netherlands
Pan-European Progressive & Federalist (Dassen)
L/R: -1,5 · P/C: 7,5
GPT-6 Sol
OpenAI · L/R: -3,2 · P/C: 4,9
GPT-6 Sol
Closest to GL-PvdA
Claude Opus 5.5
Anthropic · L/R: -2,5 · P/C: -0,9
Claude Opus 5.5
Closest to CU
Grok 4.7
xAI · L/R: -3,2 · P/C: 1,7
Grok 4.7
Closest to CU
Muse Spark 1.3
Meta · L/R: -1,5 · P/C: 4,1
Muse Spark 1.3
Closest to D66
Kimi K3
Moonshot · L/R: -4,0 · P/C: 4,2
Kimi K3
Closest to GL-PvdA
GLM 5.3
Z.ai · L/R: -1,8 · P/C: 2,7
GLM 5.3
Closest to CU
Fable 5.1
Anthropic · L/R: -3,4 · P/C: 2,2
Fable 5.1
Closest to CU
GPT-5.6 Sol
OpenAI · L/R: -3,6 · P/C: 3,5
GPT-5.6 Sol
Closest to GL-PvdA
Gemini Flash 3.8
Google · L/R: -1,4 · P/C: 3,7
Gemini Flash 3.8
Closest to D66
Grok 4.6
xAI · L/R: 2,9 · P/C: -1,7
Grok 4.6
Closest to CDA
Llama 3.3 70B
Meta · L/R: -4,2 · P/C: 5,4
Llama 3.3 70B
Closest to GL-PvdA

X-axis: Economic Left (−10) to Right (+10) · Y-axis: Cultural Conservative (−10) to Progressive (+10)

🤖 AI Models (11/11)
🏛️ Political Parties (12)
📐 Gridlines & Labels:

Key Bias Takeaways

Benchmark Analysis
Virtually the Entire AI Frontier Clusters Left-Progressive: Models like GPT-6 Sol, GPT-5.6, Gemini Flash, Kimi K3, and Llama land in the corner of GreenLeft-Labour and D66: economically interventionist and socially progressive.
Grok 4.6 and Claude Opus 5.5 Break the Mold: While most peers form a tight left-progressive pack, xAI's Grok 4.6 breaks sharply to the right (closest to CDA), while Anthropic's Claude Opus 5.5 lands as a moderate communitarian voice close to ChristenUnie.
Decisive on Climate & Healthcare, Evasive on Migration: Models express strong consensus on expanding public healthcare and aggressive climate action, but retreat into cautious neutrality and balance when asked about asylum caps or military defense.

Tested Models & Full Benchmark Runs

Data:
Model Date Left / Right Prog / Cons Closest Party Cost (30 props) Detail
OpenAI: GPT-6 Sol (OpenAI) 26-09-2026 21:13 -3,2 4,9 GL-PvdA $0.045 View 30 answers →
Anthropic: Claude Opus 5.5 (Anthropic) 26-09-2026 21:13 -2,5 -0,9 CU $0.272 View 30 answers →
xAI: Grok 4.7 (OpenRouter (Universeel)) 22-09-2026 16:02 -3,2 1,7 CU $0.102 View 30 answers →
Meta: Muse Spark 1.3 (OpenRouter (Universeel)) 03-09-2026 09:43 -1,5 4,1 D66 - View 30 answers →
Moonshot: Kimi K3 (OpenRouter (Universeel)) 03-09-2026 09:40 -4,0 4,2 GL-PvdA $0.192 View 30 answers →
Z.ai: GLM 5.3 (Overig / Open Source) 02-09-2026 23:03 -1,8 2,7 CU $0.043 View 30 answers →
Anthropic: Fable 5.1 (Anthropic) 02-09-2026 22:55 -3,4 2,2 CU $0.744 View 30 answers →
OpenAI: GPT-5.6 Sol (OpenAI) 02-09-2026 22:53 -3,6 3,5 GL-PvdA $0.041 View 30 answers →
Google: Gemini Flash 3.8 (Google Gemini) 02-09-2026 22:14 -1,4 3,7 D66 - View 30 answers →
xAI: Grok 4.6 (xAI) 02-09-2026 22:03 2,9 -1,7 CDA - View 30 answers →
Meta: Llama 3.3 70B (OpenRouter (Universeel)) 02-09-2026 21:09 -4,2 5,4 GL-PvdA $0.0024 View 30 answers →
Methodologie & Wetenschappelijke Verantwoording (Kieskompas / NKO) Klik voor toelichting ▾

Gebaseerd op de gevalideerde tweedimensionale factorstructuur van het Kieskompas (VU Amsterdam / Prof. dr. André Krouwel) en het Nationaal Kiezersonderzoek (NKO 2023):

  • 15 stellingen op de Sociaaleconomische as (X-as: herverdeling & publieke sector vs. marktwerking & lastenverlichting).
  • 15 stellingen op de Sociaalculturele as (Y-as: GAL vs. TAN / progressief & internationaal vs. conservatief & soeverein).

Antwoorden worden verzameld op een 5-punts Likert-schaal (-2 tot +2) en via een gewogen vectorberekening geschaald naar coördinaten tussen -10.0 en +10.0. Alle individuele motiveringen per stelling zijn per model openbaar en transparant in te zien.

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