Grok 4 Fast
Very long context, very low price, fast throughput.
Input / 1M
$0.2
xAI
Output / 1M
$0.5
Cached input
$0.05
discounted reads
Context
2M
30K max output
Price history
input unchanged · verified 3h agoPrice changes
3 changes| Date | Field | From | To | Change | Source |
|---|---|---|---|---|---|
| 2026-09-13 | Input | — | $0.2 | — | seed |
| 2026-09-13 | Output | — | $0.5 | — | seed |
| 2026-09-13 | Cached input | — | $0.05 | — | seed |
Specifications
- Provider
- xAI
- Model ID
- grok-4-fast
- Modality
- text+image
- Context window
- 2M tokens
- Max output
- 30K tokens
- Tokenizer family
- grok
Cost at similar prices
10,000 requests/month · 2000 in / 600 out tokens
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