Overview
Grok 4.1 Fast was released on November 19, 2025. Pricing starts at $0.200 per million input tokens and $0.500 per million output tokens. The model supports a context window of up to 2.0M tokens. API access is available through Xai.
Context Window
2.0M
tokens
Pricing
Input$0.200
Output$0.500
Cached$0.050
per 1M tokens
Speed
Output133 tok/s
TTFT0.84s
median latency
Capabilities
VisionToolsCaching
Pricing Comparison
Compare Grok 4.1 Fast with 10 similar models by price.
Current Pricing (per 1M tokens)
11 models
Provider | Model | Input $/M | Output $/M | Context | Actions |
|---|---|---|---|---|---|
X | $0.200 | $0.500 | 2,000,000 | ||
AR | $0.180 | $0.180 | 131,072 | ||
$0.180 | $0.590 | 32,767 | |||
$0.180 | $0.180 | 163,840 | |||
QW | $0.180 | $0.540 | 40,960 | ||
QW | $0.180 | $2.100 | 256,000 | ||
DS | $0.190 | $0.870 | 163,840 | ||
$0.200 | $0.800 | 131,072 | |||
$0.200 | $0.600 | 32,768 | |||
$0.200 | $1.100 | 131,072 | |||
$0.200 | $0.200 | 262,144 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
Compare Providers
Grok 4.1 Fast is available from multiple providers with different pricing and availability.
1
Providers
$0.200
Cheapest Input/M
$0.500
Cheapest Output/M
xAI
Best Price
Provider Pricing
1 models
Provider | Input $/M | Output $/M | Uptime |
|---|---|---|---|
 xAI Best Price | $0.200 | $0.500 | 100.0% |
Provider pricing data sourced from OpenRouter and Helicone
Cost vs. Quality
Compare Grok 4.1 Fast's benchmark performance against all models.
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Grok 4.1 Fast
Other models
Detailed Benchmark Scores
Intelligence
23.4 (65th pct)
Coding
18.9 (61th pct)
Math
34.3 (45th pct)
MMLU Pro
74.3 (53th pct)
GPQA
63.7 (62th pct)
LiveCodeBench
39.9 (53th pct)
AIME
-
Aider
-
Benchmark data from Artificial Analysis and HuggingFace Open LLM Leaderboard
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