xAI
Grok 4.20 (Reasoning) Pricing
API pricing for Grok 4.20 (Reasoning) by xAI. Input tokens cost $1.25/1M, output tokens cost $2.5/1M with 1M context window.
Last updated:
ReasoningToolsVision
Input Cost
$1.25
per 1M tokens
Output Cost
$2.5
per 1M tokens
Context Window
1M
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Provider xAI
Model ID grok-4.20-0309-reasoning
Context Window 1M tokens
Max Output 30000 tokens
Cache Read Cost $0.2/1M
Release Date 2026-03-09
Compare Alternatives
| Model | Input | Output | Context |
|---|---|---|---|
| Grok 4.20 (Reasoning) (this model) | $1.25 | $2.5 | 1M |
| Grok 4.20 (Non-Reasoning) xAI | $1.25 | $2.5 | 1M |
| Grok 4.20 Multi-Agent xAI | $1.25 | $2.5 | 1M |
| Grok 4.3 xAI | $1.25 | $2.5 | 1M |
| LongCat-2.0 LongCat | $0.75 | $2.95 | 1M |
| Qwen3.5 122B-A10B Alibaba | $0.4 | $3.2 | 262K |
Available from Resellers
Grok 4.20 (Reasoning) is also available through these resellers and gateways:
| Reseller | Model | Input | Output |
|---|---|---|---|
| 302.AI | grok-4-1-fast-non-reasoning | $0.2 | $0.5 |
| 302.AI | grok-4-1-fast-reasoning | $0.2 | $0.5 |
| 302.AI | grok-4-fast-non-reasoning | $0.2 | $0.5 |
| 302.AI | grok-4-fast-reasoning | $0.2 | $0.5 |
| 302.AI | grok-4.20-beta-0309-non-reasoning | $2 | $6 |
| 302.AI | grok-4.20-beta-0309-reasoning | $2 | $6 |
| 302.AI | grok-4.20-multi-agent-beta-0309 | $2 | $6 |
| Abacus | Grok 4 Fast (Non-Reasoning) | $0.2 | $0.5 |
| Abacus | Grok 4.1 Fast (Non-Reasoning) | $0.2 | $0.5 |
| Azure | Grok 4.1 Fast (Non-Reasoning) | $0.2 | $0.5 |