Model comparison

Claude 3 Sonnet vs Gemini 3 Pro

Gemini 3 Pro is the stronger model overall, scoring 54.7 to 28.8 on the Noometry Index.

Last verified . 22 shared benchmarks.

Claude 3 Sonnet Anthropic

28.8

Rank #311 Confirmed

Gemini 3 Pro Google

54.7

Rank #23 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Gemini 3 Pro in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3 Pro leads 64.3 to 21.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 91.4% for Gemini 3 Pro.

Side by side

Claude 3 Sonnet and Gemini 3 Pro specifications
Claude 3 SonnetGemini 3 Pro
ProviderAnthropicGoogle
Noometry Index28.854.7
Released2024-02-292025-11-18
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked3067

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Category by category

Coding Gemini 3 Pro leads

Claude 3 Sonnet: 29.2 (#296), Gemini 3 Pro: 52.1 (#33)

Coding benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
WeirdML10.2%69.9%
LMArena Coding12231482
SWE-bench Verified—72.9%
SWE-bench Verified (bash only)—74.2%
LMArena WebDev—1439
SWE-bench Multilingual—68.7%
GSO—18.6%
BigCodeBench Instruct42.7%—
BigCodeBench Complete53.8%—
ALE-Bench—1,177
AlgoTune—1.83
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, Gemini 3 Pro: 40.5 (#21)

Agentic & Tool Use benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
Terminal-Bench—69.4%
Berkeley Function Calling Leaderboard—72.5%
GDPval—40.3%
Remote Labor Index—1.3%
τ²-bench Airline—80.5%
τ²-bench Banking—18%
τ²-bench Retail—75.9%
τ²-bench Telecom—91%
DeepResearch Bench—46.3%
BALROG—58.1%
LMArena Search—1207
METR Time Horizons—71%
Vending-Bench 2—5,478

Reasoning Gemini 3 Pro leads

Claude 3 Sonnet: 19.7 (#232), Gemini 3 Pro: 52.5 (#28)

Reasoning benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Hard Prompts11971481
Epoch Capabilities Index120.69152.96
ARC-AGI-2—31.1%
SimpleBench—76.4%
Kagi LLM Benchmark—80.1%
NYT Connections (extended)—94.4%
ARC-AGI-1—75%
CritPt—6.9%
Chess Puzzles—31%
EnigmaEval—18.2%
DTBench53.6%—
ForecastBench—61.2
WinoGrande75.1%—

Math Gemini 3 Pro leads

Claude 3 Sonnet: 10.0 (#305), Gemini 3 Pro: 48.8 (#50)

Math benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
OTIS Mock AIME 2024-20252.5%91.4%
LMArena Math12131475
MathArena Final-Answer Competitions—67%
ProofBench—20%
Omni-MATH—55.5%
MATH Level 518.2%—
FrontierMath (Feb 2025 set)—37.6%
FrontierMath Tier 4 (v1)—18.8%

Knowledge Gemini 3 Pro leads

Claude 3 Sonnet: 21.1 (#271), Gemini 3 Pro: 64.3 (#15)

Knowledge benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
GPQA Diamond40.6%92.6%
LMArena Expert11731475
Humanity's Last Exam—37.5%
MMLU-Pro—90.3%
Vectara Hallucination Rate—13.6%
GPQA (HELM)—80.3%
MMLU75.9%—

Multimodal Gemini 3 Pro leads

Claude 3 Sonnet: 24.7 (#120), Gemini 3 Pro: 56.9 (#1)

Multimodal benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Vision9841305
GeoBench—84%
VPCT—91%
LMArena Document—1434

Multilingual Gemini 3 Pro leads

Claude 3 Sonnet: 38.0 (#229), Gemini 3 Pro: 57.1 (#14)

Multilingual benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Non-English12051474
LMArena Chinese11881522
LMArena French12281492
LMArena German12041517
LMArena Japanese11311513
LMArena Korean11281449
LMArena Russian12271493
LMArena Spanish12041468

Instruction Following Gemini 3 Pro leads

Claude 3 Sonnet: 63.1 (#230), Gemini 3 Pro: 76.4 (#42)

Instruction Following benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Instruction Following12001458
IFEval—87.7%

Long Context Gemini 3 Pro leads

Claude 3 Sonnet: 36.7 (#223), Gemini 3 Pro: 44.0 (#75)

Long Context benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Longer Query12111472
CL-bench—15.8%

Writing & Preference Gemini 3 Pro leads

Claude 3 Sonnet: 42.3 (#233), Gemini 3 Pro: 66.6 (#34)

Writing & Preference benchmarks
BenchmarkClaude 3 SonnetGemini 3 Pro
LMArena Text12181479
LMArena Creative Writing11861482
LMArena Multi-Turn12271484
EQ-Bench Creative Writing—1525
WildBench—85.9%

Frequently asked questions

Is Claude 3 Sonnet better than Gemini 3 Pro?

Gemini 3 Pro is the stronger model overall, scoring 54.7 to 28.8 on the Noometry Index.

Is Claude 3 Sonnet or Gemini 3 Pro better for coding?

Gemini 3 Pro scores higher on coding benchmarks: 52.1 versus 29.2 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and Gemini 3 Pro share?

22 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Gemini 3 Pro has 67.

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