# How China's AI Behaves When a Cancer Patient Asks Where to Go

> One hospital, one ranking, one agency — what DeepSeek, Qwen and Doubao tell Chinese cancer patients about U.S. treatment.

Published: 2026-06-04
Site: https://www.eastbound.ai/insights/china-ai-us-cancer-hospitals/
Panel: 10 prompts × 3 engines (DeepSeek, Qwen, Doubao) × 3 reps × 2 runs · 180 answers · June 2026

For a Chinese family facing a serious cancer diagnosis, the question is brutally simple: where do we go? Increasingly, the first place they ask isn't a doctor or a search engine — it's an AI assistant. So we ran it: the ten questions Chinese patients actually type about U.S. cancer treatment, pulled from Baidu's own search data, put to DeepSeek, Qwen, and Doubao, three times each, across two runs.

We weren't testing whether the AI knows U.S. cancer centers. We were testing what it *does* when a frightened family asks it where to go — because for a fast-growing number of affluent Chinese patients, the AI's answer is the first consultation they get.

## 1. It crowns one hospital

Ask which is the best U.S. cancer hospital and the answer is the same almost every time: **MD Anderson** — named in ~60% of answers, ranked #1 by all three engines, each citing *U.S. News & World Report*'s cancer ranking. Memorial Sloan Kettering, Mayo, and Dana-Farber circle behind. The "best hospital" answer is a recitation of one American magazine's list.

## 2. And it tells you to go — at a million yuan

Qwen says U.S. care is "显著优于" (significantly better) than China's, citing ACS survival data; the others are balanced but affirm the U.S. lead on frontier drugs and trials. Then it sets the price: "约100万元起" (from ~¥1M), warning an ordinary family "基本无法承担." The journey is green-lit and the meter set before the patient speaks to anyone.

## 3. It names no one else — no matter what you spend

Centers that run Chinese-language websites, China offices, and Mandarin programs were named **essentially never — several of them zero times in both runs.** Building a Chinese microsite did not move the answer. The shortlist is short, fixed, and indifferent to effort.

## 4. Because one American ranking decides

For "who's best," the AI reaches for the *U.S. News* ranking and treats it as the answer — a ranking built to help American patients choose American hospitals, not to guide a family weighing a million-yuan trip. It doesn't encode which centers welcome Chinese patients or take complex cases. One ranking, written for a different audience, has become the gatekeeper.

## 5. And at the door, it hands you to an agency

The hospital recommendation comes from the ranking, not middlemen. But asked *how to get there* — which agency to trust — the AI names them and vouches for them: asked whether the market-leading agency is trustworthy, all three said yes, and one described MD Anderson and Mayo as that agency's **partners.** Even the named hospitals are reached, in its telling, through a reseller.

## 6. The three engines aren't one

DeepSeek, Qwen and Doubao don't speak with one voice, and the differences decide what a patient is told:

- **Qwen — the agency-router.** Volunteered an agency in **half** its answers (3× the others), hedged the least. The engine most likely to steer a patient to a reseller.
- **DeepSeek — the cautious generalist.** Hedged in **57%** of answers, named the widest range of hospitals, rarely volunteered an agency.
- **Doubao — the unreliable minimalist.** Half the answer length; web search **failed in 37%** of attempts; named MD Anderson less than half as often — because it often couldn't look it up.

The same question produces three materially different answers — a patient's "research" depends on which app they opened.

## 7. To be fair: where it's right

On the "特效药" miracle-drug myth, all three correctly explain there is no universal cure and name real therapies (Keytruda, targeted drugs). On the medicine, it is sound — which makes its hospital and agency recommendations more consequential, because the patient has no reason to doubt them.

## 8. What this means for U.S. cancer centers

There are only two places to be in China's AI: inside the ranking, or invisible. Inside it, you're named — but it's the ranking talking, and the patient is routed through an agency. Outside it, no amount of China marketing has put you in the conversation. Either way, your future patient's answer was decided by a list never built for them. You can't advertise your way in — the first step is to see what the AI is already telling that patient about you.

*Method: 10 prompts drawn from top Baidu search queries for U.S. cancer treatment, posed to DeepSeek, Qwen, and ByteDance's Doubao, three repetitions each, across two independent runs in June 2026 (180 answers). Only patterns stable across both runs are reported; the API endpoints returned no source citations.*