OpenAI: GPT-5.2-Codex

Name: OpenAI: GPT-5.2-Codex
Price: 14 USD
Author: openai

OpenAI: GPT-5.2-Codex is openai's model. It is not yet scored on the meo first-party benchmark; aggregated third-party results and OpenRouter metadata are shown below.

Aggregated third-party benchmarks

Benchmark	Value	Source
AA Coding Index	43	artificial_analysis
AA Intelligence Index	49	artificial_analysis
GPQA Diamond	89.9%	artificial_analysis
Humanity's Last Exam	33.5%	artificial_analysis
IFBench	77.6%	artificial_analysis
LCR (long-context reasoning)	75.7%	artificial_analysis
SciCode	54.6%	artificial_analysis
τ²-bench	92.1%	artificial_analysis
Terminal-Bench Hard	37.1%	artificial_analysis
Median output throughput (tokens/s)	136	artificial_analysis
Median time to first token (s)	2.54	artificial_analysis

Artificial Analysis (artificialanalysis.ai). Redistribution requires an AA commercial license.

Model details

Lab: openai
Released: 2026-01-14
Weights: —
Context: 400K
Max output: 128K
Knowledge cutoff: —
Price in: $1.75/M
Price out: $14.00/M
Modality: text+image->text

View on OpenRouter ↗

Sources: openrouter · artificial_analysis

FAQ

Is OpenAI: GPT-5.2-Codex open weights?

Open-weights status for OpenAI: GPT-5.2-Codex is not recorded.