xAIEstimated tokenizer

Grok 4.20

Planning rates for the xAI API. Blended price $1.56 per 1M tokens at a 3:1 input-to-output mix.

Price

$1.56

blended per 1M tokens

Input$1.25 / 1M

Output$2.5 / 1M

10k in + 2k out$0.0175

100k in + 8k out$0.1450

1,000,000

token context window

Family grok. Non-GPT counts on the counter are labeled estimates.