gpt-oss-20B

high

Creator

OpenAI

Released

2025-08-05

Intelligence

24.5

Artificial Analysis Index

Coding

18.5

Artificial Analysis Index

In $/1M

$0.05

input tokens

Out $/1M

$0.20

output tokens

Blended $/1M

$0.09

3:1 blended

Speed

265

tokens / sec

Benchmark breakdown

Independent evaluation scores, normalized to 0–100.

GPQA Diamond
69
Humanity’s Last Exam
10
MMLU-Pro
75
SciCode
34
LiveCodeBench
78
MATH-500
AIME 2025
89
τ²-Bench (agentic)
60
Terminal-Bench Hard
11
IFBench
65
Via Artificial Analysis