S4S Ventures, co-founded by industry figure Sir Martin Sorrell, has invested in Higgsfield, an emerging AI video startup.

The Series B round was completed in August, led by DST Global, with participation from Goldman Sachs Alternatives, Valor Capital, Tribe Capital, and an unnamed chip provider.

Higgsfield secured a $400 million Series B funding at a valuation of about $5.4 billion.

The investment is aimed at helping brands rapidly generate substantial content by leveraging Higgsfield’s AI video capabilities.

San ju Partalo, S4S co-founder and general partner, described Higgsfield as distinct among AI video players for enabling brands to produce large volumes of content quickly.