I tested Grok 4.20 Reasoning to see if it’s worth a production swap. At $1.25...

https://penzu.com/p/a711503f96227007

I tested Grok 4.20 Reasoning to see if it’s worth a production swap. At $1.25 per 1M input tokens, the price is fair, but performance is the real question. I’m breaking down the API quirks and how it handles complex logic