xAI · API pricing

Grok 4.3 API pricing

Grok 4.3 costs $1.25 per million input tokens and $2.50 per million output tokens on xAI's standard tier, and cached input is $0.20. Checked against the official pricing page on October 12, 2026.

Input / 1M$1.25
Cached input / 1M$0.20
Output / 1M$2.50
Context window1M

Higher rate for prompts of 200K+.

What Grok 4.3 costs for common workloads

WorkloadMonthly costRank of 20
Support chatbot
60,000 requests · 1,500 in / 300 out
$158#11
Document summaries
20,000 requests · 6,000 in / 400 out
$170#12
Coding assistant
30,000 requests · 4,000 in / 800 out
$210#11
RAG search
100,000 requests · 2,500 in / 250 out
$375#11

Price it for your own workload

Compared against similar models from other providers.

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

Gemini 3.8 Flash
GoogleCheapest
$135 /mo
Gemini 3.6 Flash
GoogleCheapest
$135 /mo
Grok 4.3
xAI
$158 /mo
Claude Sonnet 5.5
Anthropic
$360 /mo
GPT-6.1 Sol
OpenAI
$360 /mo

Compare Grok 4.3