Grok 4.1 Fast
Last verified July 27, 2026 · xAI pricing ↗$0.200/1M input · $0.500/1M output · 2.0M context · xAI
Retired
Not generally available
xAI has shut Grok 4.1 Fast down. You cannot buy it at the rate below. The price is kept so past spend and old estimates still reconcile, and it is excluded from the calculator’s default model list and from every ranking.
xAI’s own page ↗Count Tokens
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Pricing Details
xAIRetired. xAI shut down slug grok-4-1-fast-non-reasoning on May 15, 2026 at 12:00 PM PT; the slug still resolves but bills at grok-4.3 rates ($1.25/$2.50), not the $0.20/$0.50 shown here. Replacement: grok-4.3 with reasoning effort none. Price kept for historical comparison. Estimated tokens (different tokenizer).
Input / 1M tokens
$0.2
Output / 1M tokens
$0.5
Context Window
2.0M
Max Output
16K
Price History
Launched at current price. No price changes recorded.
Frequently Asked Questions
Common questions about Grok 4.1 Fast pricing and usage