Jan 142026
I have done some benchmark on a 22 minutes wave file (radio interview from 1971 with medium quality recording).
I have then asked Copilot to assess the quality.
According to whisper the GPU version + small model is the sweet spot (CPU+Small being the best).

For the record the processing time (in seconds) below.
| CPU | tiny | 174 |
| CPU | base | 248 |
| CPU | small | 796 |
| GPU | tiny | 26 |
| GPU | base | 43 |
| GPU | small | 120 |
Beware thus that this is very hardware dependant, quality wise and for now I have mixed feeling about GPU although the ratio processing time/quality is clearly (on my hardware) promoting GPU+Small.
To be continued.