I spent the week testing Grok 4.20 Reasoning to see how it handles real...

https://charliekzxa221.huicopper.com/understanding-collections-xai-s-vector-store-and-the-hidden-costs-of-rag

I spent the week testing Grok 4.20 Reasoning to see how it handles real developer tasks. At $1.25 per 1M input tokens, the value proposition is starting to look clear for specific use cases