These seem to be from a company OneThird: https://onethird.io/avocado-scanner

From their website on how it works:

"Every piece of fresh produce has a unique spectral fingerprint. We have collected a vast amount of spectral data for many different varieties and maturity levels. Our system combines this with other data sources and uses AI algorithms to analyze the data and determine what the expected shelf-life is."

So basically, it just looks at the colour. And "AI" because it's 2025.