readable AI benchmarks (simplified)

readable AI benchmarks

OpenAI

GPT-5 nano (medium)

reasoning · closed weights · Aug 7, 2025

GPT-5 nano (medium) has a Quality Score of 28.2, ranking 268th among 551 scored models. Per 1M tokens, pricing is $0.050 input, $0.400 output, and $0.0050 cached input. It has a 400k token context window. Its Reliability Score is 37.1, ranking 241st among 553 scored models, above average (total average: 35.6). Its Value Score is 26.3, low compared with the total Value average of 30.7.

Quality Score28.2coverage 100.0%: AA Intelligence and AA-Omniscience outcomes available
Value Score26.3
Factual reliability37.1
Cache Discount90%

Model specification

Reasoning
reasoning
Input modalities
none
Output modalities
none
Context window
400k tokens
Weights
closed weights

Token prices USD per 1M tokens

Input
$0.050
Output
$0.400
Cached Input
$0.0050
Cache write
not available
Cost per task
not available

Capability

Intelligence
12.5
Coding
not available
Agentic
not available
Omniscience
-25.8
Correct
17.6%
Blended price
$0.054

Answer outcomes

Fully graded outcomes (Correct + Incorrect): 61.0%

Correct 17.6%Incorrect 43.4%Partial / not attempted 39.1%

Artificial Analysis benchmarks

Humanity’s Last Exam
9%
GPQA Diamond
67%
CritPt
0%
AA-Omniscience
37%
AA-LCR
44%

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