Models / comparison
gpt-5.4-mini vs gpt-5.4-nano
List prices as of 2026-07-02 — the same table ReasonRank uses to compute verified savings in production.
| Model | Provider | Input / 1M | Output / 1M |
|---|---|---|---|
| gpt-5.4-mini | openai | $0.75 | $4.5 |
| gpt-5.4-nano | openai | $0.2 | $1.25 |
At your volume
gpt-5.4-mini
$225.00/mo
gpt-5.4-nano
$61.50/mo
cheaper by $163.50/mo at this volume
List-price math only. Whether the cheaper one holds quality on your workload is the question ReasonRank answers with a statistical gate + production verification.
Price answers “which is cheaper” — not “which is good enough for my workload.” ReasonRank runs both models on your own test cases, applies a statistical non-inferiority gate, and verifies realized savings on your live traffic. Run this comparison on your real workload.