Possibly depending on who's routing it, since Openrouter seems to have added a separate slug for this, and they don't have an alias router for the DS models yet, so it shouldn't have swapped over to it in case you use them for routing.
If you are directly using it through Deepseek, they do mention that the flash slug has migrated over
If you are directly using it through Deepseek, they do mention that the flash slug has migrated over