Last verified 2025-09-22 (left) · 2025-09-22 (right)
GPT-4.1 mini vs GPT-4.1 nano — Pricing & Capability Comparison
GPT-4.1 mini charges $0.40 per million input tokens and $1.60 per million output tokens. GPT-4.1 nano comes in at $0.10 / $0.40. Context windows span 128K vs 128K tokens respectively.
Input price (per 1M)
GPT-4.1 mini
$0.40
GPT-4.1 nano
$0.10
GPT-4.1 nano leads here
Output price (per 1M)
GPT-4.1 mini
$1.60
GPT-4.1 nano
$0.40
GPT-4.1 nano leads here
Context window
GPT-4.1 mini
128,000 tokens
GPT-4.1 nano
128,000 tokens
GPT-4.1 mini leads here
Cached input
GPT-4.1 mini
Not published
GPT-4.1 nano
Not published
No published data
Cost comparison for 10K-token workloads
Side-by-side pricing for identical workloads (10,000 total tokens per request) across different distributions.
| Scenario | GPT-4.1 mini | GPT-4.1 nano |
|---|---|---|
Balanced conversation 50% input · 50% output | $0.0100 | $0.0025 |
Input-heavy workflow 80% input · 20% output | $0.0064 | $0.0016 |
Generation heavy 30% input · 70% output | $0.0124 | $0.0031 |
Cached system prompt 90% cached input · 10% fresh output | $0.0052 | $0.0013 |
Frequently asked questions
Which model is cheaper per million input tokens?
GPT-4.1 nano costs $0.10 per million input tokens versus $0.40 for GPT-4.1 mini.
How do output prices compare?
GPT-4.1 nano charges $0.40 per million output tokens, while GPT-4.1 mini costs $1.60 per million.
Which model supports a larger context window?
GPT-4.1 mini offers 128,000 tokens (128K) versus 128K for GPT-4.1 nano.