Fact · Speech recognition
4.00percent word error rate
In the Voxtral paper's Table 3, Gemini 2.5 Flash had a word error rate of 4.00 percent on SPGI Speech.
Quote found word for word on the live source, last checked October 19, 2026
In the source's own words
“Model LS-C LS-O GS VP SB C-4 SPGI E21 10m E22 10m ... Gemini 2.5 Flash 2.97 6.15 10.99 7.84 9.57 14.79 4.00 8.09 10.80”
Voxtral, Mistral AI, arXiv (Audio and Speech Processing), 2025, Table 3 (short-form English), SPGI Speech column.
Open the original- What it measures
- Table 3 of the paper gives word error rate for each English test set. The paper calls the Voxtral results macro-averages in its figures, and this row is one test set.
- What it does not show
- One paper's runs under its own text normalization and decoding, so compare systems within this table, not with other papers' numbers. The paper gives no date per row.
In the data
A row of Speech Recognition Accuracy: Word Error Rates, as Gemini 2.5 Flash, SPGI English: 4 percent.
- System
- Gemini 2.5 Flash
- Kind
- Cloud service
- Test set
- SPGI Speech
- Language
- English
- Speech
- Specialist vocabulary
- Year
- 2025