One table with a total against two lists with none

Both vendors publish named spoken-language lists. One is a single table whose rows can be counted to 143; the other is two alphabetical articles with no total on either. Above both sit marketing figures neither list supports. As of 2026-09-22.

Inclusion rule. Two vendors chosen because both publish named lists; the rows compare how the lists are presented, not which is longer. Order. Fixed order, from the shape of the list to the limits around it.

1Splitting the list is more careful than totalling it

Two articles separate the languages a voice exists for from the languages a finished video can be turned into. That distinction is real and almost nobody in this register makes it, so the uncounted pair arguably tells a buyer more than the counted table.

The trade is that nothing about the split lists can be quoted as a figure. Any number has to be produced by counting entries, which is reproducible but is work the vendor could have done once.

2Every marketing figure here is above its own list

One vendor prints 160+ in a heading and 140+ in a selector on the same page above a 143-row table. The other prints more than 175 above two lists that carry no total. In both cases the headline exceeds what the documentation shows.

The register quotes the lists. A list can be recounted by any reader, a heading cannot be checked at all, and where the two disagree the one that can be verified is the one worth recording as the entry.

3Only one of them publishes a limit

Ten languages per video at once is a constraint on a job rather than a statement of inventory, and it is the only figure of its kind in this register. For a series it sets how many passes each episode needs.

Neither vendor says anything about the language of generated scripts. So the pair differ on presentation, on limits and on whether their lists are split, and agree in leaving the middle column of the register empty.

4Sources

Read from the Synthesia languages feature page, the HeyGen voice languages article and its translation languages article. Both rows are kept in the register under one rule, set out on how counted; the column is described on dialogue language.

5Both of them against the rest of the column

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: Synthesia and Kling AI, VEED and HeyGen. The full set of pairings is here; single cells are indexed at entries.

• Voice languages
  The feature page is headed “Make Videos in 160+ Languages & Accents in 5 Mins” while the selector on that same page reads 140+two counts on the vendor's own pagesSynthesia, languages feature page / recorded 2026-09-22
• Voice languages
  An alphabetical list of voice languages, from Afrikaans (South Africa) to Zulu, with no total printed anywhere on the pagenamed list publishedHeyGen Help Center, voice languages / recorded 2026-09-22
• Voice languages
  A second list, kept in its own article, of the languages a finished video can be turned into, also alphabetical and also without a totalsecond named listHeyGen Help Center, translation languages / recorded 2026-09-22
• Voice languages
  “You can translate a single video into up to 10 languages at once, choosing from 175+ languages and dialects”per-job limit statedHeyGen, video translator page / recorded 2026-09-22