Grok AI Analyzed the 1967 Patterson-Gimlin Bigfoot Film — The Results Are Shocking For nearly six decades, the Patterson-Gimlin Bigfoot film has resisted every attempt to explain it away. Now Grok AI has analyzed the legendary 1967 footage using movement, proportion, terrain, and mask-boundary tests. What the system found challenges the classic man-in-a-suit theory in ways that are difficult to ignore. And one frame in particular may be the most unsettling clue of all.