Is there a tracker that identifies APIs / libraries that do this unicode injection protection? I'm guessing few do. I pasted this text into openrouter's playg

Is there a tracker that identifies APIs / libraries that do this unicode injection protection? I'm guessing few do. I pasted this text into openrouter's playground for 4o, sonnet 3.5, gemini pro and I got a mix of "nothing here" to "it's invisible unicode and I don't process/no standard meaning". So, not so practical already? Gemini Pro 1.5: >Those characters are from the Unicode Private Use Area and don't have standard meanings. Therefore, they won't display consistently across different systems and fonts. I can't "see" any meaningful text, just a series of boxes or symbols depending on my current setup. It's possible they are being used for some custom purpose within a specific application or system, but without more context, I can't interpret them. Claude 3.5 Sonnet >The visible text I see in both lines is simply "look" at the end of each line. The rest of the characters before "look" appear to be invisible or non-displaying Unicode characters. ChatGPT-4o >It appears you're asking what text I can see, but I can only interpret the text that has been input into this conversation.