About
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Related Models
Pricing
Input
$0.05
per 1M tokens
Output
$0.40
per 1M tokens
Blended
$0.14
per 1M tokens
Cheaper than 78% of models. Median price is $0.54/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
Daily
$0.14
Monthly
$4.12
vs. Similar Models
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Qwen3.5 4BQ:+0.2
$0.06-56%
DeepSeek: R1Q:+0.2
$1.15+736%
Gemini 2.5 Flash (Reasoning)Q:+0.2
$0.85+518%
Performance
160
tokens/sec
Faster than 77% of models
93.55
seconds
Faster than 0% of models
93.55
seconds
Faster than 1% of models
Market Median
94 tok/s
71% faster
Median TTFT
1.10s
8366% slower
Throughput/Dollar
1167
tok/s per $/1M
Speed Comparison
GPT-5.4 nano (Non-Reasoning)
161 tok/s+0%
OpenAI: GPT-4.1 Nano
159 tok/s-1%
Gemini 3 Pro Preview (high)
161 tok/s+1%
Context Window
400K
tokens
Larger than 76% of models
Max Output
128K
tokens
32% of context
Benchmarks
MMLU-Pro
78.0%
GPQA Diamond
67.6%
HLE
8.2%
LiveCodeBench
78.9%
SciCode
36.6%
TerminalBench Hard
12.1%
MATH-500Not evaluated
AIMENot evaluated
AIME 2025
83.7%
IFBench
67.6%
Long Context Recall
41.7%
Tau2
36.5%
Market AverageTop Score