On Jan 1st 2024 I will run this prompt in midjourney five times with random seeds: "a portrait of a smiling man and his frowning, sad wife"

I will run it with all the default options, aspect ratio 3:2, and the most advanced general model a paid subscriber can get under 100$ a month. If at least 50% of the resulting images successfully make the man look happy and the wife look unhappy, the claim resolves True.

The current best midjourney model is v5.1, and today the success rate is 0%. Five images generated with these settings are inlined below. Currently, midjourney doesn't track individual subjects clearly in this way.

Initial set of images from 5/10/2023 here: