Grok 4.1 Fast vs Grok 3 mini: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
xAI
Grok 4.1 Fast
Pricing (per 1M tokens)
Input$0.2000
Output$0.5000
Cached Input$0.0500
Context & Output
Context Window2M tokens
Max Output16K tokens
Capabilities
Categorymid
Multimodaltext + image
Fine-tuningNo
StreamingYes
xAI
Grok 3 mini
Pricing (per 1M tokens)
Input$0.3000
Output$0.5000
Cached Input$0.0700
Context & Output
Context Window131.1K tokens
Max Output16.4K tokens
Capabilities
Categorybudget
Multimodaltext
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Grok 4.1 Fast
33.3% cheaper
Cheaper Output Price
Grok 3 mini
0.0% cheaper
Larger Context Window
Grok 4.1 Fast
+1.9M tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Grok 4.1 Fast
$0.7000
$0.2000/1M input + $0.5000/1M output
Grok 3 mini
$0.8000
$0.3000/1M input + $0.5000/1M output
Grok 4.1 Fast is 12.5% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Grok 4.1 Fast or Grok 3 mini?
For input tokens, Grok 4.1 Fast is cheaper at $0.2000 per 1M tokens. For output tokens, Grok 3 mini is cheaper at $0.5000 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Grok 4.1 Fast vs Grok 3 mini?
Grok 4.1 Fast has a context window of 2M tokens, while Grok 3 mini has 131.1K tokens. Grok 4.1 Fast supports a larger context window of 2M tokens, which is beneficial for processing longer documents.
Need more tools?
Explore our complete suite of LLM calculators and comparison tools.