GPT-5 nano vs Grok Code Fast: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
OpenAI
GPT-5 nano
Pricing (per 1M tokens)
Input$0.0500
Output$0.4000
Cached Input$0.005000
Batch Input$0.0250
Batch Output$0.2000
Context & Output
Context Window400K tokens
Max Output128K tokens
Capabilities
Categorybudget
Multimodaltext
Fine-tuningNo
StreamingYes
xAI
Grok Code Fast
Pricing (per 1M tokens)
Input$0.2000
Output$1.50
Cached Input$0.0200
Context & Output
Context Window256K tokens
Max Output32.8K tokens
Capabilities
Categorymid
Multimodaltext
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
GPT-5 nano
75.0% cheaper
Cheaper Output Price
GPT-5 nano
73.3% cheaper
Larger Context Window
GPT-5 nano
+144K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
GPT-5 nano
$0.4500
$0.0500/1M input + $0.4000/1M output
Grok Code Fast
$1.70
$0.2000/1M input + $1.50/1M output
GPT-5 nano is 73.5% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, GPT-5 nano or Grok Code Fast?
For input tokens, GPT-5 nano is cheaper at $0.0500 per 1M tokens. For output tokens, GPT-5 nano is cheaper at $0.4000 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of GPT-5 nano vs Grok Code Fast?
GPT-5 nano has a context window of 400K tokens, while Grok Code Fast has 256K tokens. GPT-5 nano supports a larger context window of 400K tokens, which is beneficial for processing longer documents.
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