xAI pricing
xAI API Pricing Calculator
Reasoning tokens and server-side tools can add billed usage.
Quick estimate
No API key needed. Pick a model, paste your question, choose the answer length, and get a close cost estimate.
$1.25/M input$2.5/M output1,000,000 ctxCache pricingBatchPriorityTool fees
3. How long will the AI answer be?
Your estimate will appear here.
Paste a prompt, choose an answer length, and calculate.
Active model pricing
| Model | Input / 1M | Output / 1M | Cached / 1M | Notes |
|---|---|---|---|---|
| Grok 4.3 | $1.25 | $2.5 | $0.2 | xAI general chat model seed. |
| Grok Build 0.1 | $1 | $2 | $0.2 | xAI coding-focused model seed. |
How do I estimate xAI API cost?
Choose a xAI model, paste prompt text, optionally paste output text, and use advanced controls for cache, tier, region, and tools.
Does xAI pricing include more than tokens?
Reasoning tokens and server-side tools can add billed usage.