no, he literally said 25,000. it's even on video: https://www.cnbc.com/2018/08/18/elon-musk-tesla-could-produc...
I mean, this is just another case of Elon issuing totally unrealistic claims to pump his stock since it isn't a formal press release. but much like all of his rantings and ravings on Twitter and I'd rather treat them as concrete promises since they have realworld economic effects and wide-ranging consequences