GPT-5.2 Instant vs GPT-5 (high)

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

GPT-5.2 Instant is clearly ahead on the aggregate, 85 to 79. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.2 Instant's sharpest advantage is in coding, where it averages 75.5 against 66.1. The single biggest benchmark swing on the page is HLE, 43 to 27.

Quick Verdict

Pick GPT-5.2 Instant if you want the stronger benchmark profile. GPT-5 (high) only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

GPT-5.2 Instant

GPT-5.2 Instant

79.6

GPT-5 (high)

75.2

83
Terminal-Bench 2.0
78
82
BrowseComp
75
74
OSWorld-Verified
72

Coding

GPT-5.2 Instant

GPT-5.2 Instant

75.5

GPT-5 (high)

66.1

87
HumanEval
85
75
SWE-bench Verified
67
74
LiveCodeBench
62
77
SWE-bench Pro
70

Multimodal & Grounded

GPT-5.2 Instant

GPT-5.2 Instant

93.1

GPT-5 (high)

89.4

94
MMMU-Pro
93
92
OfficeQA Pro
85

Reasoning

GPT-5.2 Instant

GPT-5.2 Instant

90.9

GPT-5 (high)

85.7

95
SimpleQA
89
93
MuSR
87
96
BBH
94
89
LongBench v2
83
84
MRCRv2
80

Knowledge

GPT-5.2 Instant

GPT-5.2 Instant

79.8

GPT-5 (high)

71.1

98
MMLU
93
97
GPQA
91
95
SuperGPQA
89
93
OpenBookQA
87
88
MMLU-Pro
83
43
HLE
27
91
FrontierScience
83

Instruction Following

GPT-5.2 Instant

GPT-5.2 Instant

95

GPT-5 (high)

91

95
IFEval
91

Multilingual

GPT-5.2 Instant

GPT-5.2 Instant

94.4

GPT-5 (high)

86.4

95
MGSM
89
94
MMLU-ProX
85

Mathematics

GPT-5.2 Instant

GPT-5.2 Instant

97.2

GPT-5 (high)

94

99
AIME 2023
95
99
AIME 2024
97
98
AIME 2025
96
95
HMMT Feb 2023
91
97
HMMT Feb 2024
93
96
HMMT Feb 2025
92
96
BRUMO 2025
94
98
MATH-500
94

Frequently Asked Questions

Which is better, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant is ahead overall, 85 to 79. The biggest single separator in this matchup is HLE, where the scores are 43 and 27.

Which is better for knowledge tasks, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for knowledge tasks in this comparison, averaging 79.8 versus 71.1. Inside this category, HLE is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for coding in this comparison, averaging 75.5 versus 66.1. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for math in this comparison, averaging 97.2 versus 94. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for reasoning in this comparison, averaging 90.9 versus 85.7. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for agentic tasks in this comparison, averaging 79.6 versus 75.2. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for multimodal and grounded tasks in this comparison, averaging 93.1 versus 89.4. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for instruction following in this comparison, averaging 95 versus 91. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5.2 Instant or GPT-5 (high)?

GPT-5.2 Instant has the edge for multilingual tasks in this comparison, averaging 94.4 versus 86.4. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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