Is there a strict minimum course hour requirement for the DTV visa under the new Soft Power framework?

Very simple if only a soft power course and not other documents to verify your financial stability, go for 12-24-36 months, because schools will only wants to increase this numbers 555.

But if you can combine proof of your income and financial stability beyond minimum official requirements, so for combo with soft power it's working 6 months courses from reputable companies follow them advises ( not a public group anonymous advice)

Go for at least 9 months course. Make sure the course provider has a good track record for dtv applications. Then it should be fine in terms of number of classes

Go for workcation and save yourself lots of money by paying for useless clasroom sessions.

What is your passport nation?

Where are you now?

For which soft power activity course are you going to submit with your DTV visa application?

There's no legally binding requirement stated... it's all subject to the Thai Embassy or Consulate which considers your DTV visa application

It's now recommended to book the soft power activity course for 9 months or 12.

Please Note that it's now recommended by many soft power activity course providers to submit at least 9 months or more of your course with your DTV Visa Application. Reason for that is to avoid getting the SETV single entry tourist visa or METV multiple entry tourist visa issued by the Thai Embassy or Consulate instead of the DTV visa applied for.

Reasoning that with the SETV ( 3 months) or METV (6 months) visa you can complete the course you're applying for vs the DTV visa.