Fact · Languages and accents
23.3BLEU points
On the Fleurs read-speech test, Whisper large-v2 scored 23.3 BLEU when translating Spanish speech into English.
Checked against its source on October 17, 2026
In the source's own words
“Whisper large-v2 34.6 23.7 80.2 23.3 18.7 19.6 22.1 24.4 32.2 27.9 16.2 0.4 21.8 22.0”
Robust Speech Recognition via Large-Scale Weak Supervision (full text), Alec Radford et al., OpenAI (arXiv), 2022, Table 14, BLEU scores on Fleurs (speech translation).
Open the original (DOI 10.48550/arXiv.2212.04356)- What it measures
- The Spanish value is the fourth column of the Whisper large-v2 row in the table, which lists the same languages in the same order as the German figure.
- What it does not show
- The same limits apply as for the German figure: read sentences, one reference translation, and BLEU as a proxy for meaning.