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AI model worldview reflects post-training alignment choices more than lab geography, making GPT-4o and DeepSeek near-twins despite originating on opposite sides of the world

By Tomasz Tunguz · General Partner at Theory Ventures · 2026-07-06 · essay · Godless Hippies: AI Models & Values

Tier B · TL;DR
AI model worldview reflects post-training alignment choices more than lab geography, making GPT-4o and DeepSeek near-twins despite originating on opposite sides of the world

Claim

A benchmark mapping AI models by worldview found that alignment choices during post-training predict model values more reliably than the country or culture where the lab is based. GPT-4o and DeepSeek R1 cluster as near-twins, one trained in San Francisco and one in Hangzhou, while models from the same geography diverge sharply.

Mechanism

Post-training alignment, not pretraining data geography, is where worldview gets baked in. A model trained primarily on the global English-language web arrives at pretraining with a roughly similar prior to any other model trained the same way. The divergence happens during RLHF and fine-tuning, where human raters and policy choices encode the lab's values into the model's preferences. Labs that make similar fine-tuning choices produce similar worldviews regardless of national origin. Labs that make different choices produce models that land far apart even when they share a country of origin.

The benchmark Tunguz cites visualizes this as a value map, placing models by their responses to contested ethical and social questions. The proximity of GPT-4o and DeepSeek R1 on this map is the key finding: it falsifies the assumption that AI models inherit the politics of their origin country as a primary driver.

Conditions

Holds when: models are evaluated on questions where alignment choices visibly shape output (ethics, social values, contested empirical claims). Fails when: the evaluation domain is factual and objective, where alignment has less influence on output.

Evidence

"GPT-4o & DeepSeek R1 are near-twins, one trained in San Francisco, one in Hangzhou"

"Gemini 3.1 Flash Lite & Qwen 3.6 Flash sit as neighbors"

Tunguz maps multiple frontier models across a value space and finds the clustering does not follow national origin. The benchmark identifies which labs made similar alignment choices by observing the output similarities on contested questions.

Signals

Counter-evidence

The benchmark methodology is not detailed in the essay, making independent replication difficult. Worldview scores can shift substantially with prompt framing, so a single benchmark may not capture stable model values. Labs that share worldview on one set of questions may diverge on others not included in the evaluation.

Cross-references

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