Model comparison

Claude 3.5 Sonnet vs Gemini 3 Pro

Gemini 3 Pro is the stronger model overall, scoring 54.8 to 34.6 on the Noometry Index.

Last verified . 39 shared benchmarks.

Claude 3.5 Sonnet Anthropic

34.6

Rank #231 Confirmed

Gemini 3 Pro Google

54.8

Rank #28 Confirmed

Summary

  • They share 39 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 0 categories and Gemini 3 Pro in 10 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3 Pro leads 64.4 to 28.6.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 8.5% for Claude 3.5 Sonnet and 91.4% for Gemini 3 Pro.

Side by side

Claude 3.5 Sonnet and Gemini 3 Pro specifications
Claude 3.5 SonnetGemini 3 Pro
ProviderAnthropicGoogle
Noometry Index34.654.8
Released2024-06-202025-11-18
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked6067

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Category by category

Coding Gemini 3 Pro leads

Claude 3.5 Sonnet: 39.0 (#165), Gemini 3 Pro: 51.6 (#39)

Coding benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
GSO4.6%18.6%
WeirdML40%69.9%
LMArena Coding13421481
SWE-bench Verified—72.9%
SWE-bench Verified (bash only)—74.2%
Aider Polyglot51.6%—
LMArena WebDev—1440
SWE-bench Multilingual—68.7%
BigCodeBench Instruct46.8%—
LiveBench Coding67.1%—
BigCodeBench Complete58.6%—
CadEval48%—
ALE-Bench—1,177
AlgoTune—1.83
HumanEval+81.7%—
MBPP+74.3%—

Agentic & Tool Use Gemini 3 Pro leads

Claude 3.5 Sonnet: 32.3 (#67), Gemini 3 Pro: 40.6 (#23)

Agentic & Tool Use benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
BALROG32.6%58.1%
METR Time Horizons45.2%71%
Terminal-Bench—69.4%
Berkeley Function Calling Leaderboard—72.5%
GDPval—40.3%
Remote Labor Index—1.3%
TheAgentCompany24%—
τ²-bench Airline—80.5%
τ²-bench Banking—18%
τ²-bench Retail—75.9%
τ²-bench Telecom—91%
Cybench17.5%—
DeepResearch Bench—46.3%
LMArena Search—1207
Vending-Bench 2—5,478

Reasoning Gemini 3 Pro leads

Claude 3.5 Sonnet: 23.1 (#183), Gemini 3 Pro: 52.5 (#31)

Reasoning benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
SimpleBench41.4%76.4%
EnigmaEval0.9%18.2%
LMArena Hard Prompts13051480
Epoch Capabilities Index133.55152.92
ForecastBench60.761.2
ARC-AGI-2—31.1%
Kagi LLM Benchmark—80.1%
NYT Connections (extended)—94.4%
ARC-AGI-1—75%
CritPt—6.9%
Chess Puzzles—31%
LiveBench Reasoning56.7%—
DTBench67.8%—
LiveBench Data Analysis55%—
LiveBench59%—

Math Gemini 3 Pro leads

Claude 3.5 Sonnet: 19.2 (#288), Gemini 3 Pro: 49.9 (#59)

Math benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
OTIS Mock AIME 2024-20258.5%91.4%
Omni-MATH27.6%55.5%
LMArena Math13071476
FrontierMath (Feb 2025 set)2.1%37.6%
FrontierMath Tier 4 (v1)0%18.8%
MathArena Final-Answer Competitions—67%
ProofBench—20%
LiveBench Math52.3%—
MATH Level 556.9%—

Knowledge Gemini 3 Pro leads

Claude 3.5 Sonnet: 28.6 (#245), Gemini 3 Pro: 64.4 (#16)

Knowledge benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
GPQA Diamond55.3%92.6%
Humanity's Last Exam4.1%37.5%
MMLU-Pro77.7%90.3%
GPQA (HELM)56.5%80.3%
LMArena Expert12651475
Confabulations19.9%—
Vectara Hallucination Rate—13.6%
MMLU87.3%—

Multimodal Gemini 3 Pro leads

Claude 3.5 Sonnet: 26.5 (#120), Gemini 3 Pro: 57.6 (#2)

Multimodal benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
LMArena Vision11251305
GeoBench62%84%
VPCT33%91%
Video-MME60%—
LMArena Document—1434

Multilingual Gemini 3 Pro leads

Claude 3.5 Sonnet: 43.2 (#185), Gemini 3 Pro: 56.9 (#16)

Multilingual benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
LMArena Non-English12831474
LMArena Chinese12721523
LMArena French13051492
LMArena German12971515
LMArena Japanese12341510
LMArena Korean12001448
LMArena Russian13061493
LMArena Spanish12901470

Instruction Following Gemini 3 Pro leads

Claude 3.5 Sonnet: 68.8 (#182), Gemini 3 Pro: 76.3 (#45)

Instruction Following benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
IFEval85.5%87.7%
LMArena Instruction Following12971458
LiveBench Instruction Following69.3%—

Long Context Gemini 3 Pro leads

Claude 3.5 Sonnet: 39.9 (#167), Gemini 3 Pro: 44.0 (#79)

Long Context benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
LMArena Longer Query13111471
CL-bench—15.8%

Writing & Preference Gemini 3 Pro leads

Claude 3.5 Sonnet: 52.9 (#164), Gemini 3 Pro: 66.4 (#35)

Writing & Preference benchmarks
BenchmarkClaude 3.5 SonnetGemini 3 Pro
LMArena Text12981479
LMArena Creative Writing12921482
EQ-Bench Creative Writing14511525
WildBench79.2%85.9%
LMArena Multi-Turn13261484
Short-Story Creative Writing80.3%—
LiveBench Language53.8%—

Frequently asked questions

Is Claude 3.5 Sonnet better than Gemini 3 Pro?

Gemini 3 Pro is the stronger model overall, scoring 54.8 to 34.6 on the Noometry Index.

Is Claude 3.5 Sonnet or Gemini 3 Pro better for coding?

Gemini 3 Pro scores higher on coding benchmarks: 51.6 versus 39.0 in the Noometry coding category.

How many benchmarks do Claude 3.5 Sonnet and Gemini 3 Pro share?

39 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Gemini 3 Pro has 67.

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