models · openai

GPT-5 Codex

GPT-5 Codex — catalogued from third-party evaluation data; no weights held by Sovereign Frontier.

What this registry has checked

Closed. A third party reports this model and we have recorded their numbers. Nothing of our own: no weights seen, no publisher hash held. Treat every figure here as their claim.

Method	third-party-report

Re-check this yourself → Source → Full record →

What is recorded

Publisher	openai
Origin	United States
Licence	OpenAI-TOS
Context window	400,000 tokens
Modality	text+image->text
Pulls recorded here	9

Reported scores

MMLU-Pro	86.5
GPQA Diamond	83.7
AIME 2025	98.7
LiveCodeBench	84
IFBench	74.1
Humanity's Last Exam	27.8

Reported by a third party and recorded here, not re-run by us. Source: artificialanalysis.ai/api/v2.

Elsewhere in the registry

All models → Browse with filters → What will run on my hardware? →

Registry record as of 2026-07-26. Identity, licence and parameter count are properties of a release and do not move; tier can, and the verify link above re-checks it against the live registry rather than this page.