GPT-5.2 Instant Benchmark Scores & Performance

Benchmark analysis of GPT-5.2 Instant by OpenAI across 32 sourced tests on BenchLM.

According to BenchLM.ai, GPT-5.2 Instant ranks #9 out of 123 models with an overall score of 85/100. This places it in the upper tier of AI models, with competitive scores across most benchmark categories.

GPT-5.2 Instant is a proprietary model with a 128K token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.

GPT-5.2 Instant sits inside the GPT-5.2 family alongside GPT-5.2, GPT-5.2 Pro.

Its strongest category is Multilingual (#4), while its weakest is Reasoning (#15). This performance profile makes it a well-rounded choice across a range of tasks.

Creator

OpenAI

Source Type

Proprietary

Reasoning

Reasoning

Context Window

128K

Overall Score

85#9 of 123

Arena Elo

1428

Family & Lineage

Family

GPT-5.2

Instant

Canonical Entry

GPT-5.2

Knowledge Benchmarks

MMLU
98
GPQA
97
SuperGPQA
95
OpenBookQA
93
MMLU-Pro
88
HLE
43
FrontierScience
91

Coding Benchmarks

HumanEval
87
SWE-bench Verified
75
LiveCodeBench
74
SWE-bench Pro
77

Mathematics Benchmarks

AIME 2023
99
AIME 2024
99
AIME 2025
98
HMMT Feb 2023
95
HMMT Feb 2024
97
HMMT Feb 2025
96
BRUMO 2025
96
MATH-500
98

Reasoning Benchmarks

SimpleQA
95
MuSR
93
BBH
96
LongBench v2
89
MRCRv2
84

Agentic Benchmarks

Terminal-Bench 2.0
83
BrowseComp
82
OSWorld-Verified
74

Multimodal & Grounded Benchmarks

MMMU-Pro
94
OfficeQA Pro
92

Instruction Following Benchmarks

IFEval
95

Multilingual Benchmarks

MGSM
95
MMLU-ProX
94

Frequently Asked Questions

How does GPT-5.2 Instant perform overall in AI benchmarks?

GPT-5.2 Instant ranks #9 out of 123 models with an overall score of 85. It is created by OpenAI and features a 128K context window.

Is GPT-5.2 Instant good for knowledge and understanding?

GPT-5.2 Instant ranks #6 out of 123 models in knowledge and understanding benchmarks with an average score of 79.8. It is among the top performers in this category.

Is GPT-5.2 Instant good for coding and programming?

GPT-5.2 Instant ranks #10 out of 123 models in coding and programming benchmarks with an average score of 75.5. It is among the top performers in this category.

Is GPT-5.2 Instant good for mathematics?

GPT-5.2 Instant ranks #8 out of 123 models in mathematics benchmarks with an average score of 97.2. It is among the top performers in this category.

Is GPT-5.2 Instant good for reasoning and logic?

GPT-5.2 Instant ranks #15 out of 123 models in reasoning and logic benchmarks with an average score of 90.9. There are stronger options in this category.

Is GPT-5.2 Instant good for agentic tool use and computer tasks?

GPT-5.2 Instant ranks #10 out of 123 models in agentic tool use and computer tasks benchmarks with an average score of 79.6. It is among the top performers in this category.

Is GPT-5.2 Instant good for multimodal and grounded tasks?

GPT-5.2 Instant ranks #10 out of 123 models in multimodal and grounded tasks benchmarks with an average score of 93.1. It is among the top performers in this category.

Is GPT-5.2 Instant good for instruction following?

GPT-5.2 Instant ranks #6 out of 123 models in instruction following benchmarks with an average score of 95. It is among the top performers in this category.

Is GPT-5.2 Instant good for multilingual tasks?

GPT-5.2 Instant ranks #4 out of 123 models in multilingual tasks benchmarks with an average score of 94.4. It is among the top performers in this category.

Which sibling models are related to GPT-5.2 Instant?

GPT-5.2 Instant belongs to the GPT-5.2 family. Related variants on BenchLM include GPT-5.2, GPT-5.2 Pro.

What is the context window size of GPT-5.2 Instant?

GPT-5.2 Instant has a context window of 128K, which determines how much text it can process in a single interaction.

Last updated: March 12, 2026

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