xAIEstimated tokenizer

Grok 4.3 API price

xAI charges $1.25 per 1M input tokens and $2.5 per 1M output tokens. Context window 1,000,000 tokens. A 10k-in / 2k-out request is about $0.0175.

Input$1.25 / 1M

Output$2.5 / 1M

Blended$1.56 / 1M

Context1,000,000

10k + 2k$0.0175

100k + 8k$0.1450

Who uses Grok 4.3

Catalog prompts in the same model family, plus coding agents from this provider.