Noometry

Model comparison

Gemini 3 Deep Think vs GPT-5

GPT-5 has enough public results to be ranked (#45); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

Last verified . 3 shared benchmarks.

Gemini 3 Deep Think Google

58.3

Unranked Sparse

GPT-5 OpenAI

50.9

Rank #45 Confirmed

Summary

  • They share 3 benchmarks with published results for both. Gemini 3 Deep Think scores higher in 1 category and GPT-5 in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 38.3.
  • The biggest single-benchmark swing is ARC-AGI-2: 84.6% for Gemini 3 Deep Think and 9.9% for GPT-5.

Side by side

Gemini 3 Deep ThinkGPT-5
ProviderGoogleOpenAI
Noometry Index58.350.9
Released2026-02-122025-08-07
WeightsProprietaryProprietary
Context window—400K
Max output—128K
Input $ / M tokens—$1.25
Output $ / M tokens—$10
Results tracked369

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Category by category

Coding Not comparable

Gemini 3 Deep Think: —, GPT-5: 50.3 (#47)

BenchmarkGemini 3 Deep ThinkGPT-5
SWE-bench Verified—73.6%
SWE-bench Verified (bash only)—65%
Aider Polyglot—88%
LMArena WebDev—1418
SciCode—42.9%
GSO—6.9%
WeirdML—60.7%
LMArena Coding—1436
ALE-Bench—1,162
AlgoTune—1.67

Agentic & Tool Use Not comparable

Gemini 3 Deep Think: —, GPT-5: 33.1 (#56)

BenchmarkGemini 3 Deep ThinkGPT-5
Terminal-Bench—49.6%
GDPval—34.8%
Remote Labor Index—1.7%
DeepResearch Bench—49.6%
BALROG—32.8%
LMArena Search—1133
METR Time Horizons—69.6%

Reasoning Gemini 3 Deep Think leads

Gemini 3 Deep Think: 70.2 (#14), GPT-5: 38.3 (#64)

BenchmarkGemini 3 Deep ThinkGPT-5
ARC-AGI-284.6%9.9%
ARC-AGI-196%65.7%
CritPt25.7%12.6%
SimpleBench—56.7%
Kagi LLM Benchmark—72.7%
Chess Puzzles—37%
EnigmaEval—10.5%
EBR-Bench—12.7%
LMArena Hard Prompts—1416
Mystery Game Puzzles—23%
DTBench—90.7%
LMCA—40%
Epoch Capabilities Index—150
ForecastBench—61.4

Math Not comparable

Gemini 3 Deep Think: —, GPT-5: 55.0 (#44)

BenchmarkGemini 3 Deep ThinkGPT-5
FrontierMath (Tiers 1-3)—55.4%
FrontierMath Tier 4—22%
OTIS Mock AIME 2024-2025—91.4%
ProofBench—18%
Omni-MATH—64.7%
LMArena Math—1407
MATH Level 5—98.1%
FrontierMath (Feb 2025 set)—32.4%
FrontierMath Tier 4 (v1)—12.5%

Knowledge Not comparable

Gemini 3 Deep Think: —, GPT-5: 56.6 (#43)

BenchmarkGemini 3 Deep ThinkGPT-5
GPQA Diamond—86.2%
Humanity's Last Exam—25.3%
SimpleQA Verified—50.1%
MMLU-Pro—86.3%
Confabulations—10.3%
Vectara Hallucination Rate—14.7%
GPQA (HELM)—79.2%
LMArena Expert—1419

Multimodal Not comparable

Gemini 3 Deep Think: —, GPT-5: 46.8 (#13)

BenchmarkGemini 3 Deep ThinkGPT-5
LMArena Vision—1232
GeoBench—81%
VPCT—66%

Multilingual Not comparable

Gemini 3 Deep Think: —, GPT-5: 51.4 (#110)

BenchmarkGemini 3 Deep ThinkGPT-5
LMArena Non-English—1397
LMArena Chinese—1422
LMArena French—1410
LMArena German—1416
LMArena Japanese—1409
LMArena Korean—1360
LMArena Russian—1406
LMArena Spanish—1399

Instruction Following Not comparable

Gemini 3 Deep Think: —, GPT-5: 73.8 (#113)

BenchmarkGemini 3 Deep ThinkGPT-5
IFEval—87.5%
LMArena Instruction Following—1388

Long Context Not comparable

Gemini 3 Deep Think: —, GPT-5: 69.5 (#2)

BenchmarkGemini 3 Deep ThinkGPT-5
Fiction.LiveBench—97.2%
LMArena Longer Query—1399

Writing & Preference Not comparable

Gemini 3 Deep Think: —, GPT-5: 63.4 (#65)

BenchmarkGemini 3 Deep ThinkGPT-5
LMArena Text—1406
LMArena Creative Writing—1365
Short-Story Creative Writing—86%
EQ-Bench Creative Writing—1627
WildBench—85.7%
LMArena Multi-Turn—1426

Frequently asked questions

Is Gemini 3 Deep Think better than GPT-5?

GPT-5 has enough public results to be ranked (#45); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

How many benchmarks do Gemini 3 Deep Think and GPT-5 share?

3 benchmarks have published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and GPT-5 has 69.

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