The threat is not necessarily that open-weight models will immediately outperform the leading closed models. Instead, investors may have to reassess the value of a modest capability advantage as cheaper alternatives become increasingly capable.

Benzinga spoke with Elizabeth Ngonzi, founding chair of the Ethics & Responsible AI Committee at the American Society for Artificial Intelligence, about the trend.

"I do think increasingly capable open-weight models put pressure on the assumption that frontier-model capability will remain scarce enough, on its own, to support extraordinary private-market valuations indefinitely," she said.

The pressure comes from enterprises having "more credible options," she added. That includes lower-cost or self-hosted models that can be adapted to specific business needs.

‘Good Enough, Quickly Enough’