Grok 4 API Cost Calculator
Estimate your monthly API costs for Grok 4 from X Ai.
Pricing per 1M tokens
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
Estimate Your Costs
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Cost Breakdown
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| Grok 3 X Ai | $3.00 | $15.00 |
| Grok 3 Beta X Ai | $3.00 | $15.00 |
| Grok 4.20 Beta X Ai | $2.00 | $6.00 |
| Grok 4.20 Multi-Agent Beta X Ai | $2.00 | $6.00 |
| Grok Code Fast 1 X Ai | $0.2000 | $1.50 |
Frequently Asked Questions
How much does Grok 4 cost per token?
Grok 4 is priced at $3.00 per 1M input tokens and $15.00 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for Grok 4?
Grok 4 has a context window of 256K tokens (256,000 tokens).
Does Grok 4 support image inputs (vision)?
Yes, Grok 4 supports vision/image inputs. You can send images as part of your prompts.
Does Grok 4 support function calling (tool use)?
Yes, Grok 4 supports function calling (also called tool use). You can define custom functions that the model can invoke as part of its responses.
How does Grok 4 compare to similar models?
Grok 4 costs $3.00 input and $15.00 output per 1M tokens. Grok Code Fast 1 is less expensive at $0.2000 input and $1.50 output per 1M tokens. See the "Compare with Similar Models" table above, or visit the Grok Code Fast 1 page at /tools/cost-calculator/x-ai/grok-code-fast-1.