xAI just dropped Grok 4.20 Reasoning. At $1.25 per 1 million input tokens, it...

https://wiki-net.win/index.php/The_Ghost_in_the_Machine:_Did_xAI_Really_Silence_the_Grok_System_Prompt%3F

xAI just dropped Grok 4.20 Reasoning. At $1.25 per 1 million input tokens, it is a strong contender for high-volume inference. I spent the week reading their docs to see if the performance claims hold up under actual production stress tests