xAI’s Grok 4.20 Reasoning is here, and at $1.25 per 1M input tokens, the...

https://penzu.com/p/22dab160fd43db65

xAI’s Grok 4.20 Reasoning is here, and at $1.25 per 1M input tokens, the pricing is quite sharp. I dug into the technical docs to see if it’s a viable replacement for your stack or just marketing hype