benchgap
OpenAI · model

GPT-5.2-Codex benchmark scores

As of 2026-10-07, GPT-5.2-Codex (OpenAI) has measured scores on 14 benchmarks and estimated scores on 80 more.

BenchmarkScoreSource
AA-GPQA Diamond89.9%measured
AA-HLE35.7%measured
AA-SciCode51.2%estimated ± 3.8 pp, high confidence
Artificial Analysis Intelligence Index28.5%measured
CritPt8.7%measured
GDPval-AA31.7%estimated ± 6.2 pp, medium confidence
GPQA Diamond89.5%estimated ± 2.2 pp, high confidence
HLE42.4%estimated ± 9.5 pp, medium confidence
IFBench76.3%estimated ± 6.9 pp, medium confidence
AA-LCR82.3%measured
AA-Omniscience Accuracy41.1%measured
SciCode52.7%estimated ± 2.9 pp, low confidence
BrowseComp76.5%estimated ± 5.7 pp, medium confidence
IFEval93.7%estimated ± 1.3 pp, high confidence
LongBench v261.5%estimated ± 5.9 pp, low confidence
τ²-bench results92.1%measured
AA Coding Index56.2%estimated ± 5.8 pp, medium confidence
AA-MMMU-Pro76.3%measured
APEX-Agents-AA27.3%estimated ± 3.6 pp, medium confidence
BioMysteryBench (human-difficult)41.5%estimated ± 5.9 pp, low confidence
DeepSearchQA78.3%estimated ± 10.9 pp, low confidence
SWE-bench Verified78.8%estimated ± 4.4 pp, high confidence
BFCL v467.5%estimated ± 9.8 pp, low confidence
CyberGym47.9%estimated ± 10.0 pp, low confidence
JobBench26.0%measured
SWE-bench Pro56.9%estimated ± 2.1 pp, high confidence
τ³-bench results68.9%estimated ± 8.9 pp, medium confidence
WideResearch76.0%estimated ± 1.2 pp, medium confidence
AA Agentic Index17.0%estimated ± 6.4 pp, medium confidence
MMLU-Pro85.7%estimated ± 3.5 pp, high confidence
GPQA89.8%estimated ± 3.2 pp, high confidence
AA-IFBench77.6%measured
Gert Labs51.8%measured
AA EnterpriseOps-Gym41.5%estimated ± 3.6 pp, medium confidence
ApprenticeBench0.0%estimated ± 3.1 pp, low confidence
ARC-AGI-183.6%estimated ± 5.4 pp, medium confidence
ARC-AGI-246.6%estimated ± 14.2 pp, low confidence
CursorBench 3.146.3%estimated ± 5.8 pp, low confidence
CursorBench 3.254.1%estimated ± 5.4 pp, low confidence
FrontierCode 1.1 Main17.3%estimated ± 4.3 pp, low confidence
FrontierSWE v27.1%estimated ± 9.5 pp, low confidence
OfficeQA Pro50.3%estimated ± 7.2 pp, low confidence
OSWorld-Verified61.9%estimated ± 5.9 pp, medium confidence
Vals GPQA Diamond88.5%estimated ± 7.4 pp, medium confidence
Vals LiveCodeBench88.0%measured
Vals MMLU-Pro87.0%estimated ± 2.2 pp, high confidence
Vals SWE-bench72.4%measured
VulcanBench v385.8%estimated ± 5.6 pp, low confidence
AA AutomationBench46.8%estimated ± 5.0 pp, low confidence
GDP.pdf17.8%estimated ± 5.2 pp, low confidence
AA ITBench47.4%estimated ± 3.6 pp, medium confidence
CursorBench 4.026.5%estimated ± 4.4 pp, low confidence
DeepSWE56.3%estimated ± 7.2 pp, low confidence
HLE w/o tools33.4%estimated ± 5.7 pp, medium confidence
OSWorld 2.01.0%estimated ± 4.5 pp, low confidence
PostTrainBench v1.119.3%estimated ± 2.7 pp, high confidence
Toolathlon-Verified73.2%estimated ± 1.3 pp, low confidence
Vibe Code Bench37.9%measured
CharXiv83.7%estimated ± 7.5 pp, low confidence
CharXiv w/o tools80.4%estimated ± 2.4 pp, high confidence
C-Eval93.8%estimated ± 1.0 pp, low confidence
Claw-Eval50.7%estimated ± 5.6 pp, low confidence
MathVision89.0%estimated ± 4.9 pp, high confidence
MCP Atlas49.2%estimated ± 8.2 pp, medium confidence
MCP-Tasks68.2%estimated ± 8.2 pp, low confidence
MMLU-Redux96.7%estimated ± 1.1 pp, low confidence
MMMU-Pro77.5%estimated ± 4.4 pp, medium confidence
NL2Repo41.7%estimated ± 4.7 pp, high confidence
ScreenSpot Pro75.1%estimated ± 10.7 pp, low confidence
SuperGPQA81.7%estimated ± 7.5 pp, medium confidence
Toolathlon43.0%estimated ± 7.2 pp, medium confidence
ERQA65.7%estimated ± 3.9 pp, high confidence
HealthBench Hard24.5%estimated ± 7.7 pp, low confidence
MedXpertQA (MM)74.2%estimated ± 6.5 pp, low confidence
MMLU-Pro (Arcee)100.0%estimated ± 4.0 pp, low confidence
React Native Evals69.2%estimated ± 2.4 pp, low confidence
ResearchClawBench16.1%estimated ± 2.2 pp, medium confidence
SWE-Rebench61.0%estimated ± 6.5 pp, low confidence
ARC-AGI-31.7%estimated ± 3.4 pp, medium confidence
BioMysteryBench (human-solvable)82.5%estimated ± 0.6 pp, low confidence
FrontierCode 1.1 Extended18.8%estimated ± 2.4 pp, low confidence
HealthBench (raw)45.0%estimated ± 6.4 pp, low confidence
HealthBench (length-adjusted)53.9%estimated ± 3.7 pp, low confidence
HealthBench Professional57.7%estimated ± 4.8 pp, low confidence
HealthBench Professional (raw)55.6%estimated ± 5.0 pp, low confidence
HLE-Verified17.6%estimated ± 2.0 pp, low confidence
LABBench276.9%estimated ± 1.8 pp, low confidence
MMMU84.1%estimated ± 0.9 pp, high confidence
Agents' Last Exam48.9%estimated ± 8.7 pp, low confidence
OpenHarmony Bench51.9%estimated ± 3.2 pp, high confidence
MMLU93.6%estimated ± 1.1 pp, low confidence
MMMU-Pro w/ Python79.5%estimated ± 1.6 pp, high confidence
RealWorldQA85.7%estimated ± 1.2 pp, medium confidence
OmniDocBench 1.591.7%estimated ± 6.4 pp, low confidence