Noometry

Model comparison

Claude Opus 4.1 vs Gemini 3 Flash Preview

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 41.0 on the Noometry Index.

Last verified . 39 shared benchmarks.

Claude Opus 4.1 Anthropic

41.0

Rank #142 Confirmed

Gemini 3 Flash Preview Google

52.3

Rank #40 Confirmed

Summary

  • They share 39 benchmarks with published results for both. Claude Opus 4.1 scores higher in 1 category and Gemini 3 Flash Preview in 9 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Gemini 3 Flash Preview leads 51.7 to 22.3.
  • The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 12.6% for Claude Opus 4.1 and 51.2% for Gemini 3 Flash Preview.
  • Gemini 3 Flash Preview is cheaper at $0.50 / $3 per million input/output tokens, against $15 / $75 for Claude Opus 4.1.
  • Gemini 3 Flash Preview accepts more context: 1.05M tokens versus 200K.

Side by side

Claude Opus 4.1Gemini 3 Flash Preview
ProviderAnthropicGoogle
Noometry Index41.052.3
Released2025-08-052025-12-17
WeightsProprietaryProprietary
Context window200K1.05M
Max output32K66K
Input $ / M tokens$15$0.50
Output $ / M tokens$75$3
Results tracked4859

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Category by category

Coding Gemini 3 Flash Preview leads

Claude Opus 4.1: 44.4 (#73), Gemini 3 Flash Preview: 50.9 (#42)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
SWE-bench Verified73.3%75.4%
LMArena WebDev13901439
WeirdML45.9%61.6%
LMArena Coding14791460
ALE-Bench674.771,367
SWE-bench Verified (bash only)—75.8%
SWE-bench Multilingual—72.7%
GSO—9.8%
AlgoTune1.34—

Agentic & Tool Use Gemini 3 Flash Preview leads

Claude Opus 4.1: 35.0 (#41), Gemini 3 Flash Preview: 38.7 (#29)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
Terminal-Bench38%64.3%
DeepResearch Bench48.3%49.8%
LMArena Search11481198
GDPval43.6%—
τ²-bench Airline—82.5%
τ²-bench Banking—27.3%
τ²-bench Retail—76.8%
τ²-bench Telecom—91.2%
Cybench42%—
BALROG—48.1%
GDP.pdf—10%
METR Time Horizons66.8%—
Vending-Bench 2—3,635

Reasoning Gemini 3 Flash Preview leads

Claude Opus 4.1: 32.2 (#76), Gemini 3 Flash Preview: 49.2 (#37)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
SimpleBench60%61.1%
Chess Puzzles7%40%
LMArena Hard Prompts14431465
Mystery Game Puzzles21%26%
DTBench80%89.1%
LMCA37.1%43.1%
Epoch Capabilities Index144.12151.8
ForecastBench6258.5
ARC-AGI-2—33.6%
NYT Connections (extended)—83.1%
ARC-AGI-1—84.7%
EnigmaEval7.2%—
EBR-Bench7.9%—

Math Gemini 3 Flash Preview leads

Claude Opus 4.1: 22.3 (#277), Gemini 3 Flash Preview: 51.7 (#55)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
FrontierMath (Tiers 1-3)12.6%51.2%
FrontierMath Tier 42.4%17.1%
OTIS Mock AIME 2024-202568.9%95.6%
LMArena Math14311473
FrontierMath (Feb 2025 set)7.2%35.6%
FrontierMath Tier 4 (v1)4.2%4.2%
MathArena Final-Answer Competitions—67.6%
ProofBench—15%

Knowledge Gemini 3 Flash Preview leads

Claude Opus 4.1: 42.0 (#101), Gemini 3 Flash Preview: 58.8 (#33)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
GPQA Diamond77.3%89.4%
Vectara Hallucination Rate11.8%13.5%
LMArena Expert14391462
Humanity's Last Exam11.5%—
SimpleQA Verified—66.8%
Confabulations17.1%—

Multimodal Gemini 3 Flash Preview leads

Claude Opus 4.1: 26.8 (#119), Gemini 3 Flash Preview: 45.5 (#16)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
VPCT35%72.6%
LMArena Vision—1285
GeoBench—88%
Blueprint-Bench 2—0%
LMArena Document—1413

Multilingual Gemini 3 Flash Preview leads

Claude Opus 4.1: 52.0 (#95), Gemini 3 Flash Preview: 55.7 (#27)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
LMArena Non-English14051458
LMArena Chinese14271511
LMArena French14311477
LMArena German14131497
LMArena Japanese13781489
LMArena Korean13801443
LMArena Russian14221480
LMArena Spanish14481469

Instruction Following Too close to call

Claude Opus 4.1: 75.6 (#58), Gemini 3 Flash Preview: 75.7 (#56)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
LMArena Instruction Following14351437

Long Context Too close to call

Claude Opus 4.1: 44.5 (#63), Gemini 3 Flash Preview: 44.4 (#67)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
LMArena Longer Query14551452

Writing & Preference Gemini 3 Flash Preview leads

Claude Opus 4.1: 62.4 (#74), Gemini 3 Flash Preview: 65.5 (#45)

BenchmarkClaude Opus 4.1Gemini 3 Flash Preview
LMArena Text14191466
LMArena Creative Writing14121457
LMArena Multi-Turn14441471
Short-Story Creative Writing84.7%—

Frequently asked questions

Is Claude Opus 4.1 better than Gemini 3 Flash Preview?

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 41.0 on the Noometry Index.

Which is cheaper, Claude Opus 4.1 or Gemini 3 Flash Preview?

Gemini 3 Flash Preview is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; Claude Opus 4.1 lists at $15 and $75.

Is Claude Opus 4.1 or Gemini 3 Flash Preview better for coding?

Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 44.4 in the Noometry coding category.

Which has the bigger context window?

Gemini 3 Flash Preview does, with 1.05M tokens against 200K.

How many benchmarks do Claude Opus 4.1 and Gemini 3 Flash Preview share?

39 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Gemini 3 Flash Preview has 59.

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