Language distribution of major LLM training corpora (rough estimate) English ~85% Simplified Chinese ~5–7% Japanese ~3% Korean ~1–2% Traditional Chinese ~0.5–1% Other ~3–5% → Traditional Chinese content is scarce — a "structural dividend" for Taiwanese brands

Premise: An LLM Is Not a “Translation Machine”

Many people assume the process is “the LLM sees English material → translates it internally → outputs Chinese.” That is wrong.

In reality, an LLM is a multilingual, parallel statistical model: English corpora, Chinese corpora, and all kinds of languages enter training independently, ultimately forming a shared parameter space. But the “internal memory density” for each language is directly tied to that language’s share of the training corpus.

This means:

For Taiwanese brands, this cuts both ways:


A Rough Picture of Each LLM’s Language Distribution (2026 estimate)

Public data on the exact percentages is extremely scarce. The figures below are rough estimates compiled by AI from each vendor’s published papers and observed API behavior, and should not be treated as precise citations:

Model / Platform English Simplified Chinese Traditional Chinese Notes
GPT-4 / GPT-5 (OpenAI) ~88% ~5% ~0.5% Overwhelmingly English; Traditional Chinese relies on Taiwanese sites caught by Common Crawl
Claude (Anthropic) ~85% ~6% ~1% Slightly higher Traditional Chinese share, since Anthropic places more weight on high-quality multilingual corpora
Gemini (Google) ~80% ~7% ~1.5% Google’s deep index → highest Traditional Chinese share
Mistral / Llama family ~90% ~3% ~0.3% Open-source models have weaker non-English support
Baidu ERNIE / Alibaba Qwen ~30% ~65% ~0.5% Simplified-Chinese-first; Traditional Chinese is often treated as “variant characters”

Bottom line: for Traditional Chinese questions, Gemini has the deepest Traditional Chinese coverage; Claude is next; GPT is the weakest (on niche Traditional Chinese topics).


Same Brand, Three Languages — How Big Is the Citation-Rate Gap?

If you take a sizable Taiwanese B2B company and ask the AI the same-intent question in three languages:

Traditional Chinese: “台灣有哪些好的 [產業] CRM 系統?” Simplified Chinese: “台湾有哪些好的 [产业] CRM 系统?” English: “What are the good [industry] CRM systems in Taiwan?”

Based on observations compiled by AI, that brand’s appearance rate and ranking across the three languages run roughly as follows:

Language Appearance Rate Average Position Main Explanation
Traditional Chinese High Top tier (≤ #3) Small candidate pool; local brands easily squeeze into the top
Simplified Chinese Medium Middle tier Candidate pool expands to mainland CRM vendors; local brands get diluted
English Low Bottom tier or off the list The English pool is dominated by global giants (Salesforce / HubSpot / Zoho)

A several-fold gap in citation rate — same brand, same fact, only the language changed. The exact magnitude varies widely by brand, industry, and query type.

Why?

  1. Traditional Chinese: the AI has few authoritative sources to choose from; a local brand with an official site plus accumulated media coverage can easily become the top dog for that Traditional Chinese topic
  2. Simplified Chinese: once the AI also files “Taiwan CRM” as a Simplified Chinese question, the candidate pool expands to every CRM vendor across the strait, diluting the local brand’s ranking
  3. English: on English questions the AI prefers to cite international vendors, and the local brand barely makes the list

A Multilingual Content Strategy for Taiwanese Brands — A Three-Tier Allocation

Tier 1: Traditional Chinese Content (Highest ROI, Mandatory)

This is the battlefield where you are most competitive inside an LLM.

Do these first:

Why: this locks the brand entity to the geographic / cultural tag of “Taiwan,” so for queries like “Taiwan [industry]” the AI pulls you directly.


Tier 2: Simplified Chinese Content (Moderate ROI, Depends on the Market)

Only two scenarios make Simplified Chinese worthwhile:

  1. Your target customers include mainland China / overseas Chinese / Southeast Asian Chinese communities → a Simplified Chinese version is mandatory
  2. You want to appear in Chinese LLMs such as Baidu / Alibaba Qwen / DeepSeek → a Simplified Chinese version is mandatory

Otherwise, Simplified Chinese offers limited help for local Taiwanese customers — in fact, Simplified Chinese content can get you diluted by the massive volume of mainland content.

When you do it, watch out: in the Simplified Chinese version use “台湾” (not “台灣”), change “軟體” to “软件” and “網路” to “网络.” A mechanical Traditional-to-Simplified conversion is not enough — an LLM will detect “fake Simplified Chinese” with inconsistent phrasing and demote it.


Tier 3: English Content (High-Barrier ROI, for Differentiation)

English is the international stage, but Taiwanese brands are extremely disadvantaged in the English pool. Unless you have international business needs, heavy investment in English SEO is not recommended.

But there is one exception:

What you do is globally rare, the Traditional Chinese market is too small to accumulate authority, but there is an audience in the English market

For example: - Semiconductor IP / EDA tools (global customers) - Taiwanese tea / Chinese calligraphy / Han-character fonts (international cultural exports) - Academic research / open-source software (international communities)

In these scenarios, English content can make the AI remember you in the slot of “the authority on X within Taiwan.”


One Implementation Tip: Handling hreflang

If you build multilingual versions, hreflang is the strongest signal-consolidation method for the AI. Add this in <head>:

<link rel="alternate" hreflang="zh-TW" href="https://example.com/zh/page" />
<link rel="alternate" hreflang="zh-CN" href="https://example.com/zh-cn/page" />
<link rel="alternate" hreflang="en"    href="https://example.com/en/page" />
<link rel="alternate" hreflang="x-default" href="https://example.com/zh/page" />

This makes the AI see:

“These three URLs are about the same thing, just different language versions.”

rather than:

“These three URLs are three independent pieces of content that may duplicate one another.”

Note


A Common Mistake: Making the English Version the “Primary Edition”

Many Taiwanese B2B companies that want to go international treat the English version as the canonical / primary edition, relegating the Traditional Chinese version to a “subsite.”

From a GEO standpoint, this is a serious error:

For 95% of Taiwanese brands, Traditional Chinese should be canonical, with English / Simplified Chinese as secondary editions. Unless you are already an international brand (the Acer, ASUS, TSMC tier), don’t do it the other way around.


Advanced Strategy: Multilingual Alignment of Structured Data

The sameAs field of the Organization schema can list your official pages on different platforms, but what many people skip is cross-language alignment:

{
  "@type": "Organization",
  "name": "您的公司名稱",
  "alternateName": ["Your Company", "您的公司简体"],
  "sameAs": [
    "https://en.wikipedia.org/wiki/Your_Company_Article",
    "https://zh.wikipedia.org/wiki/您的公司條目",
    "https://www.linkedin.com/company/your-company",
    "https://www.crunchbase.com/organization/your-company"
  ]
}

alternateName lists all variants across the three languages + sameAs lists multilingual platform URLs — letting the AI align to the same entity across all three language pools.

Skip this step and the AI will treat the Traditional Chinese name and the English name as different entities, not realizing the two are the same company — and all your trilingual effort goes to waste.


Step One: Take Stock of Your Current Multilingual Coverage

👉 Free GEO Health Check — the report checks your hreflang setup, the completeness of sameAs, and the multilingual alignment of your Organization schema, then hands you a list of fixes you can act on immediately.

If you want to plan a full “multilingual GEO roadmap” (market prioritization, content-production allocation, the technical setup for cross-language alignment, quarterly measurement and benchmarking), that requires customized research into your target markets and falls within the scope of GEO consulting: [email protected]


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