No. The author describes their process for generating the image down that very thread[0]
Quoting the tweet for those who dislike twitter:
> The procedure for this was pretty simple:
> - Started with a placeholder image
> - Got the hash of it
> - Changed text of the image to match the hash
> - Then used
> @anishathalye great neural-hash-collider which took only 1-2 iterations
N.B. it starts with 'started with an image, and the hash of it'
[0]: https://twitter.com/ghidraninja/status/1428270675010199554