To put things into perspective, someone like that makes $600k+ at FAANG. At a hot new startup they would be making $300k+ base. And these people are in huge demand currently.
If you're expecting this level of compensation I believe a take home task like this is not too much.
That much? For the task that OP is describing? I know that FAANG salaries are high in the upper bands but I think that OP's take-home is doable at a much lower level. Or I'm very underleveled and underpaid.
And of course, the task being doable doesn't make it a good take home, I still think OP should turn it down.
How many years of ML/NLP experience do you have? 190k is probably reasonable for someone with less than 2 years. If you have more, definitely try more companies.
A dollar today is worth is lot less than even 1 year ago, just look at the housing prices.
If you're expecting this level of compensation I believe a take home task like this is not too much.