Input tokens
$1.25/M
Output tokens
$2.50/M
Cached input
$0.20/M
Context
2.0M
Model specifications
- Model ID
- grok-4.20-0309-reasoning
- Provider
- xAI
- Context
- 2.0M
- Max Output
- 128K
- Release Date
- Mar 9, 2026
- Knowledge Cutoff
- Not specified
- Updated
- Jun 11, 2026
Capabilities
💻Code
🔧Function Call
📊JSON Mode
◆Reasoning
📝Text
👁️Vision
Notes
xAI Chat API 推理模型（支持 reasoning tokens），1M 上下文窗口。
Cost calculator
Enter your expected daily usage for each billing type.
Estimated per day
$2.50
Estimated per month
$75.00
Estimates use the current standard tier and exclude taxes, free quotas, batch discounts and provider-specific pricing.