GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks.
Added Mar 17, 2026
Context Window
400.0K
Max Output
128.0K
Avg output tokens (7d)
203 tokens
Input Price (Auto)
$0.20/1M
Output Price (Auto)
$1.25/1M
Cache Read (Auto)
$0.020/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
11.5
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
55.8%
Better than 30% of models compared
HLE
Humanity's Last Exam
4.1%
Better than 15% of models compared
IFBench
Instruction-following benchmark
32.7%
Better than 20% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
34.8%
Better than 43% of models compared
AA-LCR
Long context reasoning evaluation
29.7%
Better than 32% of models compared
GDPval-AA
Economically valuable tasks
9.2%
CritPt
Research-level physics reasoning
0.0%
Coding
Terminal-Bench Hard
Agentic coding and terminal use
24.2%
Better than 64% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
14.9%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
61.5%
Last updated Sep 7, 2026
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