GPT-5.2 is OpenAI's latest flagship model with improved reasoning and long-context performance.
Added Dec 11, 2025
Context Window
400.0K
Max Output
128.0K
Input Price (Auto)
$1.75/1M
Output Price (Auto)
$14.00/1M
Cache Read (Auto)
$0.18/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
26.0
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
71.2%
Better than 57% of models compared
HLE
Humanity's Last Exam
7.3%
Better than 56% of models compared
IFBench
Instruction-following benchmark
47.4%
Better than 57% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
46.5%
Better than 51% of models compared
AA-LCR
Long context reasoning evaluation
38.0%
Better than 52% of models compared
CritPt
Research-level physics reasoning
0.6%
Coding
SciCode
Python programming for scientific computing
40.4%
Better than 79% of models compared
Terminal-Bench Hard
Agentic coding and terminal use
31.8%
Better than 77% of models compared
LiveCodeBench
Contamination-free coding benchmark
66.9%
Better than 75% of models compared
Math
AIME 2025
American Invitational Mathematics Examination 2025
51.0%
Better than 49% of models compared
Knowledge
MMLU-Pro
Professional and academic subject knowledge
81.4%
Better than 75% of models compared
AA-Omniscience Accuracy
Proportion of correctly answered questions
30.8%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
62.3%
Last updated Jun 28, 2026
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GPT 5.6 Terra Pro
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