Korean is declared seven times, and skipped by one long set
Seven of the nine vendors that declare a site language declare Korean. One nine-code set omits it while declaring Japanese, which makes that set the only sizeable declaration in this register to separate the two East Asian markets. As of 2026-09-22.
| Vendor | Code as declared | Form of the code | The set it sits in |
|---|---|---|---|
| CapCut | ko-KR | Region-tagged | 27 locales, every one but English region-tagged |
| Higgsfield | ko | Bare language code | five bare codes |
| Kling AI | ko | Bare language code | 20 bare codes |
| PixVerse | ko | Bare language code | 13 bare codes |
| Runway | ko | Bare language code | five codes, one of them region-tagged |
| SceneMixer | ko | Bare language code | 15 codes, one of them script-tagged |
| Vidu | ko | Bare language code | nine bare codes |
Inclusion rule. Vendors declaring this language as a same-host hreflang alternate. A vendor serving the language without declaring it cannot be seen by this method and is not listed. Order. Alphabetical by vendor.
1Japanese and Korean usually travel together
Every declared set here containing Korean also contains Japanese, and all but one containing Japanese also contains Korean. The pair is added as a unit, which is what a company treating East Asia as one region would do.
The exception is a nine-code set that went deeper into Europe instead, adding Italian, Dutch and Swedish. So the two East Asian codes are the clearest fork in this column after the shared core.
2A small market that gets translated early
South Korea has around fifty million speakers and appears in seven of nine sets, which is better coverage than Italian, Dutch, Turkish or Russian receive. Short vertical drama has a large domestic audience there, and the tooling market follows it.
One vendor writes ko-KR and the other six the bare code. The language is effectively national to one market, so the tag adds confirmation rather than information.
3Nothing in the other columns names it
Six of these seven vendors publish no spoken-language list. The one long list that might contain Korean belongs to a vendor that does not declare the code at all, which is an odd combination and a real one.
So a producer making a Korean-language series has seven translated websites to choose from and no published statement anywhere in this register that a generated video would speak the language.
4Sources
Each row was read from the vendor's own markup on 2026-09-22 and is kept in the register; what counts as a declaration is on how counted. The set that omits it is read at its own entry.
Languages either side of this one in the index: Japanese and Malay. Every language any vendor declares is listed at one language at a time.
- Site languages9 languages: de, en, es, fr, it, ja, nl, pt-BR, svdeclared as same-domain alternates
- Site languages5 languages: de, en, es, ja, kodeclared as same-domain alternates
- Site languages9 languages: de, en, es, fr, ja, ko, pt, ru, zhdeclared as same-domain alternates