Model comparison

Gemini 3.7 Flash vs GPT-5.1

Gemini 3.7 Flash is the stronger model overall, scoring 59.8 to 48.8 on the Noometry Index.

Last verified . 32 shared benchmarks.

Gemini 3.7 Flash Google

59.8

Rank #11 Confirmed

GPT-5.1 OpenAI

48.8

Rank #47 Confirmed

Summary

  • They share 32 benchmarks with published results for both. Gemini 3.7 Flash scores higher in 7 categories and GPT-5.1 in 3 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.7 Flash leads 70.1 to 39.9.
  • The biggest single-benchmark swing is ARC-AGI-2: 84.6% for Gemini 3.7 Flash and 17.6% for GPT-5.1.
  • Gemini 3.7 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $1.25 / $10 for GPT-5.1.
  • Gemini 3.7 Flash accepts more context: 1.05M tokens versus 400K.

Side by side

Gemini 3.7 Flash and GPT-5.1 specifications
Gemini 3.7 FlashGPT-5.1
ProviderGoogleOpenAI
Noometry Index59.848.8
Released2026-08-132025-11-13
WeightsProprietaryProprietary
Context window1.05M400K
Max output66K128K
Input $ / M tokens$0.75$1.25
Output $ / M tokens$3.75$10
Results tracked4463

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Category by category

Coding Gemini 3.7 Flash leads

Gemini 3.7 Flash: 55.7 (#19), GPT-5.1: 46.9 (#59)

Coding benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena WebDev15931395
SciCode59.8%43.3%
LMArena Coding14991454
ALE-Bench904.31,192
SWE-bench Verified—68%
DeepSWE65.5%—
FrontierCode43.6%—
SWE-bench Verified (bash only)—66%
FrontierSWE20.3%—
GSO—13.7%
WeirdML—60.8%
LiveBench Coding—72.5%

Agentic & Tool Use Gemini 3.7 Flash leads

Gemini 3.7 Flash: 42.2 (#18), GPT-5.1: 32.5 (#55)

Agentic & Tool Use benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
Terminal-Bench—47.6%
APEX-Agents67.8%—
Remote Labor Index5%—
DeepResearch Bench—42.8%
GDP.pdf23.8%—
LMArena Search—1199
Vending-Bench 2—1,473

Reasoning Gemini 3.7 Flash leads

Gemini 3.7 Flash: 70.1 (#12), GPT-5.1: 39.9 (#50)

Reasoning benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
ARC-AGI-284.6%17.6%
ARC-AGI-195.5%72.8%
CritPt14.3%4.9%
Chess Puzzles47%32%
LMArena Hard Prompts14971457
Mystery Game Puzzles37%19%
DTBench96.8%90.1%
LMCA50.4%43.9%
Epoch Capabilities Index157.72149.66
SimpleBench—53.2%
NYT Connections (extended)94%—
EnigmaEval—11.2%
LiveBench Reasoning—95.8%
LiveBench Data Analysis—72.1%
ForecastBench—58.1
LiveBench—78.8%

Math Gemini 3.7 Flash leads

Gemini 3.7 Flash: 69.5 (#18), GPT-5.1: 50.3 (#45)

Math benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
OTIS Mock AIME 2024-202597.2%88.6%
LMArena Math15111446
FrontierMath (Tiers 1-3)71.6%—
FrontierMath Tier 436.6%—
ProofBench58%—
Omni-MATH—46.4%
LiveBench Math—94.5%
FrontierMath (Feb 2025 set)—31%
FrontierMath Tier 4 (v1)—12.5%

Knowledge Gemini 3.7 Flash leads

Gemini 3.7 Flash: 69.8 (#4), GPT-5.1: 50.5 (#65)

Knowledge benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
GPQA Diamond94.8%87.6%
SimpleQA Verified69.2%48%
LMArena Expert15081470
Humanity's Last Exam—23.7%
MMLU-Pro—57.9%
Vectara Hallucination Rate—10.9%
GPQA (HELM)—44.2%

Multimodal GPT-5.1 leads

Gemini 3.7 Flash: 36.9 (#69), GPT-5.1: 44.0 (#17)

Multimodal benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena Vision13141250
VPCT—58.7%
Furniture Assembly26.7%—
LMArena Document—1403

Multilingual Gemini 3.7 Flash leads

Gemini 3.7 Flash: 57.8 (#7), GPT-5.1: 54.0 (#51)

Multilingual benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena Non-English14851431
LMArena Chinese15531495
LMArena French15121451
LMArena German14851439
LMArena Japanese15061453
LMArena Korean14861401
LMArena Russian15191435
LMArena Spanish15071430

Instruction Following GPT-5.1 leads

Gemini 3.7 Flash: 78.0 (#12), GPT-5.1: 84.0 (#1)

Instruction Following benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena Instruction Following14861442
LiveBench Instruction Following—93.3%
IFEval—93.5%

Long Context GPT-5.1 leads

Gemini 3.7 Flash: 45.8 (#28), GPT-5.1: 47.6 (#14)

Long Context benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena Longer Query14931448
CL-bench—23.7%
CL-bench Life—17.3%

Writing & Preference Gemini 3.7 Flash leads

Gemini 3.7 Flash: 71.4 (#19), GPT-5.1: 64.7 (#53)

Writing & Preference benchmarks
BenchmarkGemini 3.7 FlashGPT-5.1
LMArena Text14871443
LMArena Creative Writing14901427
LMArena Multi-Turn14951449
EQ-Bench Creative Writing1723—
WildBench—86.3%
LiveBench Language—80.2%

Frequently asked questions

Is Gemini 3.7 Flash better than GPT-5.1?

Gemini 3.7 Flash is the stronger model overall, scoring 59.8 to 48.8 on the Noometry Index.

Which is cheaper, Gemini 3.7 Flash or GPT-5.1?

Gemini 3.7 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; GPT-5.1 lists at $1.25 and $10.

Is Gemini 3.7 Flash or GPT-5.1 better for coding?

Gemini 3.7 Flash scores higher on coding benchmarks: 55.7 versus 46.9 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.7 Flash does, with 1.05M tokens against 400K.

How many benchmarks do Gemini 3.7 Flash and GPT-5.1 share?

32 benchmarks have published results for both models. Gemini 3.7 Flash has 44 scored results on Noometry and GPT-5.1 has 63.

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