xAI: Grok 4.1 Fast API Pricing
by x-ai · 2000K context window ·
$0.200
Input /1M tokens
$0.500
Output /1M tokens
2000K
Context window
Monthly Cost Examples
Assuming 50% input / 50% output token split
| Usage | Monthly cost |
|---|---|
| 100K tokens/month | $0.03 |
| 1M tokens/month | $0.35 |
| 10M tokens/month | $3.50 |
| 100M tokens/month | $35.00 |
Compare with other models
xAI: Grok 4.1 Fast vs OpenAI: GPT-4o →xAI: Grok 4.1 Fast vs OpenAI: GPT-4o-mini →xAI: Grok 4.1 Fast vs OpenAI: o1 →Automate your model selection
StormRouter sends each request to the cheapest model that can handle it.
Only use xAI: Grok 4.1 Fast when your quality requirements demand it.