Two sets of five that agree on only three codes
Runway and Higgsfield each declare five same-host alternates. The sets share English, Japanese and Korean and then disagree completely: one adds French and Brazilian Portuguese, the other German and Spanish. As of 2026-09-22.
| Code | Runway | Higgsfield |
|---|---|---|
| en, ja, ko | Declared | Declared |
| de | Not declared | Declared |
| es | Not declared | Declared |
| fr | Declared | Not declared |
| pt-BR | Declared, region-tagged | Not declared |
Inclusion rule. The only two declared sets in this register with the same number of codes. Rows are the union of the two sets. Order. Shared codes first, then the codes only one vendor declares.
1A count of five describes two different plans
Three codes in common out of five means these sets agree on East Asia plus English and disagree on Europe entirely. Any table sorting this column by number would place them together and hide that.
The register prints the codes for exactly this case. Two vendors at the same height in a chart can be selling into different continents, and the total is the part of the cell that carries the least information.
2One of them skipped German
German appears in eight of the nine declared sets here, including a set of two codes. Its absence from a five-code set is the single most unusual omission in this column, and the vendor declared French and Brazilian Portuguese instead.
The other set is the more conventional one: German, English, Spanish, Japanese, Korean, all bare, all widely declared elsewhere. It is also completely contained in two longer sets here, while the first set is contained in none.
3Neither publishes anything else
Both vendors leave the output and voice columns empty. So the whole published language position of each is five codes, and the only variant information between them is one region tag on one code.
For a reader that makes the code list the entire value of both rows. Whether their own market is named is answerable; whether a generated video would speak the language is not, on either row.
4Sources
Counted from the markup of runway.com and higgsfield.ai. Both rows are kept in the register under one rule, set out on how counted; the column is described on site language.
5Both of them against the rest of the column
| Tool | Site languages |
|---|---|
| CapCut | 27 |
| D-ID | 2 |
| Fliki | None declared |
| Hailuo | None declared |
| HeyGen | None declared |
| Higgsfield | 5 |
| invideo AI | None declared |
| Kling AI | 20 |
| LTX Studio | None declared |
| Pika | None declared |
| PixVerse | 13 |
| Rask AI | One same-host, 15 on subdomains |
| Runway | 5 |
| SceneMixer | 15 |
| Synthesia | 9 |
| VEED | None declared |
| Vidnoz | One same-host, 11 on subdomains |
| Vidu | 9 |
Inclusion rule. Tools with a public English site selling AI video generation or AI video dubbing. Site languages count hreflang alternates served from the host being read; x-default and alternates pointing at another host are not counted, for every vendor alike. Order. Alphabetical by tool name.
Other pairings that turn on the same kind of difference: Kling AI and SceneMixer, PixVerse and Vidu. The full set of pairings is here; single cells are indexed at entries.
- Site languages5 languages: en, fr, ja, ko, pt-BRdeclared as same-domain alternates
- Voice languagesNo public list (as of 2026-09-12)no list published