Fact · Languages and accents
99languages
AssemblyAI's documentation says its Universal-2 speech-to-text model supports 99 languages.
Quote found word for word on the live source, last checked October 19, 2026
In the source's own words
“Universal-2 supports 99 languages. Pass the corresponding language_code in your transcription request to specify the language.”
Supported Languages & Features (AssemblyAI documentation), AssemblyAI, 2026, Supported Languages & Features, Universal-2 section.
Open the original- What it measures
- AssemblyAI's documentation page listing the languages for each of its speech-to-text models. Universal-2 is the model that AssemblyAI recommends for languages outside the Universal-3.5 Pro list.
- What it does not show
- The page's Universal-2 table has more entries than the stated 99, and the page does not explain the difference. We record the stated total. Support is for the language code, and accuracy varies by language; the page groups languages by word error rate.
In the data
A row of How Many Languages Speech Recognition Supports, as AssemblyAI Universal-2: 99 languages.
- System
- AssemblyAI Universal-2
- Maker
- AssemblyAI
- Kind
- Cloud speech API
- What is counted
- Languages
- On device
- Not stated
- As of
- 2026-10
Source
Used to calculate
- In the languages supported by speech recognition systems dataset, the 10 published figures for “Cloud speech API” have a median of 94 languages, ranging from 13 to 125.
- The languages supported by speech recognition systems dataset holds 45 data points, each a published figure traced to its source.
- The languages supported by speech recognition systems dataset draws on 39 distinct sources.