This is a major legal victory for OpenAI and all companies training their large language models. It's also a warning against those who want to sue these companies, as the judge has made it clear plaintiffs better be able to show they've been injured and aren't just trying to get compensation for something that's not taking place. Moving forward, suing for violations of specific provisions of the DMCA may be unavailable to content creators.
OpenAI and its competitors aren't out of the woods yet. Even if suing for a violation of the DMCA may be a challenging path, there's still plenty of blatant copyright violation going on with these companies and several content creators — including large outlets like The New York Times. Eventually, these companies will have to compensate those whose work they're using to train their models while accumulating large sums of revenue.