Noometry

Model comparison

Claude Opus 4.5 vs Gemini 2.0 Flash (Feb 2025)

Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 35.1 on the Noometry Index.

Last verified . 31 shared benchmarks.

Claude Opus 4.5 Anthropic

50.5

Rank #47 Confirmed

Gemini 2.0 Flash (Feb 2025) Google

35.1

Rank #228 Confirmed

Summary

  • They share 31 benchmarks with published results for both. Claude Opus 4.5 scores higher in 9 categories and Gemini 2.0 Flash (Feb 2025) in 1 category; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 4.5 leads 42.6 to 15.2.
  • The biggest single-benchmark swing is SWE-bench Verified (bash only): 76.8% for Claude Opus 4.5 and 13.5% for Gemini 2.0 Flash (Feb 2025).

Side by side

Claude Opus 4.5Gemini 2.0 Flash (Feb 2025)
ProviderAnthropicGoogle
Noometry Index50.535.1
Released2025-11-012024-12-06
WeightsProprietaryProprietary
Context window200K—
Max output64K—
Input $ / M tokens$5—
Output $ / M tokens$25—
Results tracked6954

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Category by category

Coding Claude Opus 4.5 leads

Claude Opus 4.5: 54.8 (#27), Gemini 2.0 Flash (Feb 2025): 28.4 (#315)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
SWE-bench Verified (bash only)76.8%13.5%
WeirdML63.7%25.8%
LMArena Coding15041350
SWE-bench Verified76.7%—
Aider Polyglot—38.2%
LMArena WebDev1494—
SWE-bench Multilingual70.7%—
GSO26.5%—
BigCodeBench Instruct—45.9%
LiveBench Coding—63.4%
BigCodeBench Complete—59.9%
CadEval—30%
ALE-Bench1,025—
AlgoTune1.77—

Agentic & Tool Use Claude Opus 4.5 leads

Claude Opus 4.5: 47.3 (#12), Gemini 2.0 Flash (Feb 2025): 28.1 (#92)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
Terminal-Bench63.1%—
Berkeley Function Calling Leaderboard77.5%—
GDPval45.5%—
Remote Labor Index3.8%—
TheAgentCompany—11.4%
τ²-bench Airline84%—
τ²-bench Banking24.7%—
τ²-bench Retail79.6%—
τ²-bench Telecom92.3%—
Cybench82%—
DeepResearch Bench54.8%—
OSWorld66.3%—
BALROG43.5%—
LMArena Search1180—
METR Time Horizons75%—
Vending-Bench 24,967—

Reasoning Claude Opus 4.5 leads

Claude Opus 4.5: 42.6 (#51), Gemini 2.0 Flash (Feb 2025): 15.2 (#318)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
ARC-AGI-237.6%1.3%
SimpleBench62%31.1%
Kagi LLM Benchmark80.2%37.8%
EnigmaEval11.9%1.1%
LMArena Hard Prompts14761346
DTBench89.9%63.2%
Epoch Capabilities Index150.09135.36
NYT Connections (extended)52.5%—
ARC-AGI-180%—
Chess Puzzles12%—
EBR-Bench14.3%—
LiveBench Reasoning—78.2%
Mystery Game Puzzles22%—
LiveBench Data Analysis—69.4%
LMCA44.5%—
ForecastBench60.7—
LiveBench—66.9%

Math Too close to call

Claude Opus 4.5: 38.6 (#132), Gemini 2.0 Flash (Feb 2025): 37.9 (#146)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
OTIS Mock AIME 2024-202586.1%57.8%
LMArena Math14631352
FrontierMath (Feb 2025 set)20.7%1.7%
FrontierMath (Tiers 1-3)34.4%—
FrontierMath Tier 44.9%—
ProofBench36%—
Omni-MATH—45.9%
LiveBench Math—75.8%
MATH Level 5—82.2%
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Opus 4.5 leads

Claude Opus 4.5: 56.5 (#44), Gemini 2.0 Flash (Feb 2025): 32.0 (#213)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
GPQA Diamond86%64.1%
Humanity's Last Exam25.2%6.6%
LMArena Expert14871339
SimpleQA Verified45.7%—
MMLU-Pro—73.7%
Confabulations—12.4%
Vectara Hallucination Rate10.9%—
GPQA (HELM)—55.6%
MMLU—79.7%

Multimodal Gemini 2.0 Flash (Feb 2025) leads

Claude Opus 4.5: 31.4 (#107), Gemini 2.0 Flash (Feb 2025): 36.5 (#79)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
GeoBench75%77%
LMArena Vision—1158
VPCT40%—
Furniture Assembly28.3%—
LMArena Document1462—

Multilingual Claude Opus 4.5 leads

Claude Opus 4.5: 54.3 (#47), Gemini 2.0 Flash (Feb 2025): 47.4 (#149)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
LMArena Non-English14381342
LMArena Chinese14701373
LMArena French14711391
LMArena German14491353
LMArena Japanese14161294
LMArena Korean14241313
LMArena Russian14471351
LMArena Spanish14581363

Instruction Following Claude Opus 4.5 leads

Claude Opus 4.5: 77.5 (#19), Gemini 2.0 Flash (Feb 2025): 74.4 (#97)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
LMArena Instruction Following14781336
LiveBench Instruction Following—85.8%
IFEval—84.1%

Long Context Claude Opus 4.5 leads

Claude Opus 4.5: 46.5 (#22), Gemini 2.0 Flash (Feb 2025): 38.1 (#203)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
LMArena Longer Query14801344
Fiction.LiveBench—61.1%
CL-bench21.1%—

Writing & Preference Claude Opus 4.5 leads

Claude Opus 4.5: 68.1 (#28), Gemini 2.0 Flash (Feb 2025): 49.5 (#190)

BenchmarkClaude Opus 4.5Gemini 2.0 Flash (Feb 2025)
LMArena Text14511354
LMArena Creative Writing14451340
EQ-Bench Creative Writing16871128
LMArena Multi-Turn14661350
Short-Story Creative Writing—73.8%
WildBench—80%
LiveBench Language—51.3%

Frequently asked questions

Is Claude Opus 4.5 better than Gemini 2.0 Flash (Feb 2025)?

Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 35.1 on the Noometry Index.

Is Claude Opus 4.5 or Gemini 2.0 Flash (Feb 2025) better for coding?

Claude Opus 4.5 scores higher on coding benchmarks: 54.8 versus 28.4 in the Noometry coding category.

How many benchmarks do Claude Opus 4.5 and Gemini 2.0 Flash (Feb 2025) share?

31 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and Gemini 2.0 Flash (Feb 2025) has 54.

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