Noometry

Model comparison

Gemini 1.0 Pro vs GPT-5.1

GPT-5.1 is the stronger model overall, scoring 49.0 to 27.3 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemini 1.0 Pro Google

27.3

Rank #332 Confirmed

GPT-5.1 OpenAI

49.0

Rank #53 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemini 1.0 Pro scores higher in 0 categories and GPT-5.1 in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.1 leads 52.2 to 9.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.1% for Gemini 1.0 Pro and 88.6% for GPT-5.1.

Side by side

Gemini 1.0 ProGPT-5.1
ProviderGoogleOpenAI
Noometry Index27.349.0
Released2023-12-132025-11-13
WeightsProprietaryProprietary
Context window—400K
Max output—128K
Input $ / M tokens—$1.25
Output $ / M tokens—$10
Results tracked2463

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Category by category

Coding GPT-5.1 leads

Gemini 1.0 Pro: 32.2 (#275), GPT-5.1: 46.4 (#66)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Coding11081454
SWE-bench Verified—68%
SWE-bench Verified (bash only)—66%
LMArena WebDev—1395
SciCode—43.3%
GSO—13.7%
WeirdML—60.8%
LiveBench Coding—72.5%
ALE-Bench—1,192
HumanEval+55.5%—
MBPP+61.4%—

Agentic & Tool Use Not comparable

Gemini 1.0 Pro: —, GPT-5.1: 32.7 (#60)

BenchmarkGemini 1.0 ProGPT-5.1
Terminal-Bench—47.6%
DeepResearch Bench—42.8%
LMArena Search—1199
Vending-Bench 2—1,473

Reasoning GPT-5.1 leads

Gemini 1.0 Pro: 17.1 (#296), GPT-5.1: 39.8 (#58)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Hard Prompts11091457
DTBench45.9%90.1%
Epoch Capabilities Index117.04149.64
ARC-AGI-2—17.6%
SimpleBench—53.2%
ARC-AGI-1—72.8%
CritPt—4.9%
Chess Puzzles—32%
EnigmaEval—11.2%
LiveBench Reasoning—95.8%
Mystery Game Puzzles—19%
LiveBench Data Analysis—72.1%
LMCA—43.9%
ForecastBench—58.1
LiveBench—78.8%

Math GPT-5.1 leads

Gemini 1.0 Pro: 9.3 (#321), GPT-5.1: 52.2 (#51)

BenchmarkGemini 1.0 ProGPT-5.1
OTIS Mock AIME 2024-20251.1%88.6%
LMArena Math11321447
Omni-MATH—46.4%
LiveBench Math—94.5%
MATH Level 511.2%—
FrontierMath (Feb 2025 set)—31%
FrontierMath Tier 4 (v1)—12.5%

Knowledge GPT-5.1 leads

Gemini 1.0 Pro: 15.6 (#291), GPT-5.1: 50.6 (#71)

BenchmarkGemini 1.0 ProGPT-5.1
GPQA Diamond34%87.6%
LMArena Expert10591470
Humanity's Last Exam—23.7%
SimpleQA Verified—48%
MMLU-Pro—57.9%
Vectara Hallucination Rate—10.9%
GPQA (HELM)—44.2%
MMLU70%—

Multimodal Not comparable

Gemini 1.0 Pro: —, GPT-5.1: 44.8 (#19)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Vision—1250
VPCT—58.7%
LMArena Document—1403

Multilingual GPT-5.1 leads

Gemini 1.0 Pro: 33.4 (#252), GPT-5.1: 53.8 (#56)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Non-English11381431
LMArena Chinese11241495
LMArena French11451450
LMArena German11251438
LMArena Japanese10231453
LMArena Russian11861435
LMArena Spanish11191433
LMArena Korean—1401

Instruction Following GPT-5.1 leads

Gemini 1.0 Pro: 57.6 (#267), GPT-5.1: 83.9 (#1)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Instruction Following11141443
LiveBench Instruction Following—93.3%
IFEval—93.5%

Long Context GPT-5.1 leads

Gemini 1.0 Pro: 34.3 (#249), GPT-5.1: 47.6 (#14)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Longer Query11321447
CL-bench—23.7%
CL-bench Life—17.3%

Writing & Preference GPT-5.1 leads

Gemini 1.0 Pro: 36.0 (#264), GPT-5.1: 64.5 (#55)

BenchmarkGemini 1.0 ProGPT-5.1
LMArena Text11491443
LMArena Creative Writing11311427
LMArena Multi-Turn11391450
WildBench—86.3%
LiveBench Language—80.2%

Frequently asked questions

Is Gemini 1.0 Pro better than GPT-5.1?

GPT-5.1 is the stronger model overall, scoring 49.0 to 27.3 on the Noometry Index.

Is Gemini 1.0 Pro or GPT-5.1 better for coding?

GPT-5.1 scores higher on coding benchmarks: 46.4 versus 32.2 in the Noometry coding category.

How many benchmarks do Gemini 1.0 Pro and GPT-5.1 share?

20 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and GPT-5.1 has 63.

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