gpt-oss-20B

low

Creator

OpenAI

Released

2025-08-05

Intelligence

20.8

Artificial Analysis Index

Coding

14.4

Artificial Analysis Index

In $/1M

$0.06

input tokens

Out $/1M

$0.20

output tokens

Blended $/1M

$0.10

3:1 blended

Speed

272

tokens / sec

Benchmark breakdown

Independent evaluation scores, normalized to 0–100.

GPQA Diamond
61
Humanity’s Last Exam
5
MMLU-Pro
72
SciCode
34
LiveCodeBench
65
MATH-500
AIME 2025
62
τ²-Bench (agentic)
50
Terminal-Bench Hard
5
IFBench
58
Via Artificial Analysis