Model comparison

Claude Opus 5 vs Gemma 2 9B

Claude Opus 5 is the stronger model overall, scoring 67.8 to 25.9 on the Noometry Index.

Last verified . 21 shared benchmarks.

Claude Opus 5 Anthropic

67.8

Rank #4 Confirmed

Gemma 2 9B Google

25.9

Rank #341 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude Opus 5 scores higher in 8 categories and Gemma 2 9B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Opus 5 leads 86.2 to 9.9.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Claude Opus 5 and 0.6% for Gemma 2 9B.
  • Gemma 2 9B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5 and Gemma 2 9B specifications
Claude Opus 5Gemma 2 9B
ProviderAnthropicGoogle
Noometry Index67.825.9
Released2026-07-242024-06-24
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$5—
Output $ / M tokens$25—
Results tracked5735

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Category by category

Coding Claude Opus 5 leads

Claude Opus 5: 67.5 (#5), Gemma 2 9B: 29.4 (#304)

Coding benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Coding15341173
DeepSWE73.6%—
FrontierCode53.4%—
CursorBench46.6%—
LMArena WebDev1691—
FrontierSWE52%—
SciCode56.4%—
WeirdML91.8%—
BigCodeBench Instruct—34.7%
LiveBench Coding—22.5%
BigCodeBench Complete—40.6%
ALE-Bench2,165—

Agentic & Tool Use Not comparable

Claude Opus 5: 55.6 (#1), Gemma 2 9B: —

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
APEX-Agents65.8%—
OSWorld 2.031.4%—
τ²-bench Banking48.7%—
PostTrainBench35%—
BALROG63.4%—
GBAEval79.6%—
GDP.pdf24%—
Vending-Bench 211,182—

Reasoning Claude Opus 5 leads

Claude Opus 5: 77.2 (#4), Gemma 2 9B: 15.9 (#309)

Reasoning benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Hard Prompts15261171
Epoch Capabilities Index162.78119.83
ARC-AGI-290.4%—
SimpleBench80.6%—
NYT Connections (extended)94.3%—
ARC-AGI-197.5%—
CritPt29.1%—
Chess Puzzles42%—
EBR-Bench45.7%—
LiveBench Reasoning—15.2%
Mystery Game Puzzles59%—
DTBench97.9%—
LiveBench Data Analysis—36.4%
LMCA64.5%—
Bench to the Future 30.12—
LiveBench—28.7%
PIQA—83.7%

Math Claude Opus 5 leads

Claude Opus 5: 86.2 (#8), Gemma 2 9B: 9.9 (#318)

Math benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
OTIS Mock AIME 2024-202598.9%0.6%
LMArena Math15311183
FrontierMath (Tiers 1-3)85.6%—
FrontierMath Tier 473.2%—
ProofBench99%—
LiveBench Math—19.8%
MATH Level 5—21%
GSM8K—84.9%

Knowledge Claude Opus 5 leads

Claude Opus 5: 66.8 (#9), Gemma 2 9B: 9.7 (#305)

Knowledge benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
GPQA Diamond93.9%27.5%
LMArena Expert15571147
SimpleQA Verified59.9%—
BoolQ—85.7%
MMLU—72.1%

Multimodal Not comparable

Claude Opus 5: 50.8 (#8), Gemma 2 9B: —

Multimodal benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Vision1319—
Blueprint-Bench 230.4%—
Furniture Assembly60.8%—
LMArena Document1516—

Multilingual Claude Opus 5 leads

Claude Opus 5: 58.8 (#4), Gemma 2 9B: 36.6 (#238)

Multilingual benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Non-English15011188
LMArena Chinese15741185
LMArena French15191190
LMArena German15241186
LMArena Japanese15161144
LMArena Korean15211137
LMArena Russian15071200
LMArena Spanish15191200

Instruction Following Claude Opus 5 leads

Claude Opus 5: 79.2 (#7), Gemma 2 9B: 57.6 (#269)

Instruction Following benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Instruction Following15171178
LiveBench Instruction Following—52.6%

Long Context Claude Opus 5 leads

Claude Opus 5: 46.5 (#21), Gemma 2 9B: 36.3 (#233)

Long Context benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Longer Query15151197

Writing & Preference Claude Opus 5 leads

Claude Opus 5: 79.2 (#1), Gemma 2 9B: 32.1 (#281)

Writing & Preference benchmarks
BenchmarkClaude Opus 5Gemma 2 9B
LMArena Text15071207
LMArena Creative Writing14911206
EQ-Bench Creative Writing2133841
LMArena Multi-Turn14991193
EQ-Bench 41385—
LiveBench Language—25.5%

Frequently asked questions

Is Claude Opus 5 better than Gemma 2 9B?

Claude Opus 5 is the stronger model overall, scoring 67.8 to 25.9 on the Noometry Index.

Is Claude Opus 5 or Gemma 2 9B better for coding?

Claude Opus 5 scores higher on coding benchmarks: 67.5 versus 29.4 in the Noometry coding category.

How many benchmarks do Claude Opus 5 and Gemma 2 9B share?

21 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Gemma 2 9B has 35.

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