TAU2
Measured May 29, 2026Source
Score
0.3
Models15 0 
GPT-5 nano (medium)
OpenAIOpenAIUnited States
This is a lightweight, medium-sized model in the GPT-5 series, designed to offer a balance of performance, speed, and cost-effectiveness. It inherits core GPT-5 capabilities such as reasoning and code generation, while being optimized for broader deployment scenarios.
ReasoningFastCheapCoding
Input / 1M tokens
$0.05Output / 1M tokens
$0.40Output tokens/s
183.37First-token seconds
44.4sSupported plans
0Benchmark history
Evaluations
Terminalbench Hard
Measured May 29, 2026Source
Score
0.17
Lcr
Measured May 29, 2026Source
Score
0.4
Ifbench
Measured May 29, 2026Source
Score
0.66
Aime 25
Measured May 29, 2026Source
Score
0.78
Scicode
Measured May 29, 2026Source
Score
0.34
Livecodebench
Measured May 29, 2026Source
Score
0.76
Hle
Measured May 29, 2026Source
Score
0.08
Gpqa
Measured May 29, 2026Source
Score
0.67
Mmlu Pro
Measured May 29, 2026Source
Score
0.77
Artificial Analysis Math Index
Measured May 29, 2026Source
Score
78.3
Artificial Analysis Coding Index
Measured May 29, 2026Source
Score
22.9
Artificial Analysis Intelligence Index
Measured May 29, 2026Source
Score
25.9
Aime
Measured May 29, 2026Source
Score
0.96
Math 500
Measured May 29, 2026Source
Score
0.99
Plan availability
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