GPT-5.4 Nano

Name: GPT-5.4 Nano
Author: OpenAI

GPT-5.4 nano is an AI model from OpenAI.

Publisher: OpenAI
Family: GPT
Context: 400K
Input
Output
License: proprietary
Released: 17 Mar 2026

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Notes

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Attribution

Benchmark scores: frontiermathAA LiveBench prime-hub Vals AI EQ-Bench

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Context

400K

Weights

Closed

API only

Input

$0.20

/1M tok

Output

$1.25

/1M tok

Blended

$0.46

#332/ 499/1M · 3:1

Speed

#103/ 498tok/s

Cache read

$0.02

0.10x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reasoning effort	Index	Speed
xhigh	20.7	0 t/s
medium	20.0	0 t/s
Non-reasoning	11.7	0 t/s

Intelligence Index per reasoning-effort setting, via Artificial Analysis · pricing identical across tiers

Reported on 29 evals across 13 domains - best 91.7% on Polars Env

Reported eval scores

IFBench75.9

LiveBench - Math91.3

Terminal-Bench (Hard)42.4

LiveBench - Coding72.1

LiveBench - Reasoning81.1

LiveBench - Language62.5

LiveBench - Instruction Following67.2

LiveBench - Data Analysis67.6

LiveBench73.6

Humanity's Last Exam (HLE)28.3

Vals Index33

SciCode47.2

GPQA Diamond81.7

τ²-bench (Tau²-bench)76

FrontierMath25.9

CorpFin v261.2

TaxEval v267.4

MortgageTax59.1

Finance Agent (v2)38.2

AutomationBench26.2