gpt-4.1-nano vs grok-4-1-fast-reasoning
Input price
$0.10
$0.20
Output price
$0.40
$0.50
Context window
1048K
2000K
Throughput
159 tok/s
131 tok/s
Availability
96.7%
97.3%
Cost / task
$0.000
$0.001
Efficiency score
96
96
Estimated monthly cost by workload
Metric
GPT-4.1-NANO
GROK-4-1-FAST-
Chat assistant
$78.00
$120.00
RAG / long context
$156.00
$285.00
Agent / tool use
$216.00
$324.00
Efficiency score: gpt-4.1-nano
Across price, speed and reliability, gpt-4.1-nano offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.
Figures are illustrative demo data, not financial advice.
Frequently asked questions
Is gpt-4.1-nano or grok-4-1-fast-reasoning cheaper?+
gpt-4.1-nano has the lower input price — $0.10 vs $0.20 per 1M tokens — so for most blended workloads it is the more cost-effective of the two. Figures are illustrative demo data.
Which should I choose, gpt-4.1-nano or grok-4-1-fast-reasoning?+
Across price, speed and reliability, gpt-4.1-nano offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.