Mistral's modified MIT grants no rights at all above $20 million monthly revenue
Above the threshold this is not a commercial-only limit: the license grants nothing, for any use, to the model and to derivatives of it. The way in is a commercial license from Mistral or Mistral's hosted services.
You are not authorized to exercise any rights under this license if the global consolidated monthly revenue of your company (or that of your employer) exceeds $20 million (or its equivalent in another currency) for the preceding month.Modified MIT (Mistral): full summary