DeepSeek V4 Flash vs Grok 4.1 Fast: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
DeepSeek
DeepSeek V4 Flash
Pricing (per 1M tokens)
Input$0.1400
Output$0.2800
Cached Input$0.0280
Context & Output
Context Window1M tokens
Max Output384K tokens
Capabilities
Categorybudget
Multimodaltext
Fine-tuningNo
StreamingYes
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
Quick Verdict
Cheaper Input Price
DeepSeek V4 Flash
30.0% cheaper
Cheaper Output Price
DeepSeek V4 Flash
44.0% cheaper
Larger Context Window
Grok 4.1 Fast
+1M tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
DeepSeek V4 Flash
$0.4200
$0.1400/1M input + $0.2800/1M output
Grok 4.1 Fast
$0.7000
$0.2000/1M input + $0.5000/1M output
DeepSeek V4 Flash is 40.0% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, DeepSeek V4 Flash or Grok 4.1 Fast?
For input tokens, DeepSeek V4 Flash is cheaper at $0.1400 per 1M tokens. For output tokens, DeepSeek V4 Flash is cheaper at $0.2800 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of DeepSeek V4 Flash vs Grok 4.1 Fast?
DeepSeek V4 Flash has a context window of 1M tokens, while Grok 4.1 Fast has 2M tokens. Grok 4.1 Fast supports a larger context window of 2M tokens, which is beneficial for processing longer documents.
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