GPT-5.2 Codex

xhigh

Creator

OpenAI

Released

2025-12-11

Intelligence

49.0

Artificial Analysis Index

Coding

43.0

Artificial Analysis Index

In $/1M

$1.75

input tokens

Out $/1M

$14.00

output tokens

Blended $/1M

$4.81

3:1 blended

Speed

139

tokens / sec

Benchmark breakdown

Independent evaluation scores, normalized to 0–100.

GPQA Diamond
90
Humanity’s Last Exam
34
MMLU-Pro
SciCode
55
LiveCodeBench
MATH-500
AIME 2025
τ²-Bench (agentic)
92
Terminal-Bench Hard
37
IFBench
78
Via Artificial Analysis