GPT 5.2 Codex

Release Date: 12/11/2025

Accuracy (Average)

66.10%

Latency (Average)

763.82s

Avg. Cost (In/Out)

1.75 / 14

Context Window

400k

Max Output Tokens

128k

Input Modality

Hyperparameter settings
Default Provider : OpenAI

Temperature

Default

Top P

Default

Top K

Default

Max Output Tokens

128,000

Reasoning Effort

high

Benchmarks

Accuracy

Rankings

0.0%

± 4.58
8/ 25

0.0%

± 0.94
2/ 102

0.0%

± 2.00
17/ 40
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