Model comparison
Claude Sonnet 5 vs Gemma 2 9B
Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 25.7 on the Noometry Index.
Last verified . 21 shared benchmarks.
GoogleSummary
- They share 21 benchmarks with published results for both. Claude Sonnet 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 Sonnet 5 leads 66.1 to 9.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 94.7% for Claude Sonnet 5 and 0.6% for Gemma 2 9B.
- Gemma 2 9B has downloadable open weights; the other is API-only.
Side by side
| Claude Sonnet 5 | Gemma 2 9B | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 54.5 | 25.7 |
| Released | 2026-06-29 | 2024-06-24 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 51 | 35 |
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Category by category
Coding Claude Sonnet 5 leads
Claude Sonnet 5: 55.5 (#20), Gemma 2 9B: 29.0 (#299)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Coding | 1483 | 1174 |
| DeepSWE | 53.8% | — |
| FrontierCode | 42.7% | — |
| CursorBench | 34.1% | — |
| LMArena WebDev | 1540 | — |
| SciCode | 53.6% | — |
| GSO | 37.3% | — |
| WeirdML | 68.8% | — |
| BigCodeBench Instruct | — | 34.7% |
| LiveBench Coding | — | 22.5% |
| BigCodeBench Complete | — | 40.6% |
| ALE-Bench | 1,463 | — |
Agentic & Tool Use Not comparable
Claude Sonnet 5: 42.7 (#16), Gemma 2 9B: —
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| APEX-Agents | 54.5% | — |
| GBAEval | 65.3% | — |
| LMArena Search | 1194 | — |
| Vending-Bench 2 | 6,378 | — |
Reasoning Claude Sonnet 5 leads
Claude Sonnet 5: 48.2 (#37), Gemma 2 9B: 15.3 (#306)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Hard Prompts | 1461 | 1172 |
| Epoch Capabilities Index | 156.34 | 119.78 |
| SimpleBench | 60.6% | — |
| NYT Connections (extended) | 75.1% | — |
| CritPt | 16.9% | — |
| Chess Puzzles | 35% | — |
| LiveBench Reasoning | — | 15.2% |
| Mystery Game Puzzles | 35% | — |
| DTBench | 92.5% | — |
| LiveBench Data Analysis | — | 36.4% |
| LMCA | 50% | — |
| Surface Evolver Bench | 60% | — |
| Bench to the Future 3 | 0.14 | — |
| ForecastBench | 61.1 | — |
| LiveBench | — | 28.7% |
| PIQA | — | 83.7% |
Math Claude Sonnet 5 leads
Claude Sonnet 5: 66.1 (#21), Gemma 2 9B: 9.3 (#312)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.7% | 0.6% |
| LMArena Math | 1467 | 1183 |
| FrontierMath (Tiers 1-3) | 65.6% | — |
| FrontierMath Tier 4 | 29.3% | — |
| ProofBench | 77% | — |
| LiveBench Math | — | 19.8% |
| MATH Level 5 | — | 21% |
| GSM8K | — | 84.9% |
Knowledge Claude Sonnet 5 leads
Claude Sonnet 5: 55.7 (#42), Gemma 2 9B: 9.7 (#300)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| GPQA Diamond | 90.5% | 27.5% |
| LMArena Expert | 1491 | 1147 |
| SimpleQA Verified | 33.7% | — |
| BoolQ | — | 85.7% |
| MMLU | — | 72.1% |
Multimodal Not comparable
Claude Sonnet 5: 42.4 (#26), Gemma 2 9B: —
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Vision | 1275 | — |
| Blueprint-Bench 2 | 24.9% | — |
| LMArena Document | 1466 | — |
Multilingual Claude Sonnet 5 leads
Claude Sonnet 5: 54.0 (#55), Gemma 2 9B: 36.8 (#233)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Non-English | 1431 | 1188 |
| LMArena Chinese | 1475 | 1185 |
| LMArena French | 1457 | 1189 |
| LMArena German | 1448 | 1186 |
| LMArena Japanese | 1422 | 1144 |
| LMArena Korean | 1411 | 1137 |
| LMArena Russian | 1452 | 1200 |
| LMArena Spanish | 1436 | 1200 |
Instruction Following Claude Sonnet 5 leads
Claude Sonnet 5: 76.6 (#39), Gemma 2 9B: 57.8 (#264)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Instruction Following | 1453 | 1178 |
| LiveBench Instruction Following | — | 52.6% |
Long Context Claude Sonnet 5 leads
Claude Sonnet 5: 44.8 (#53), Gemma 2 9B: 36.3 (#228)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Longer Query | 1464 | 1197 |
Writing & Preference Claude Sonnet 5 leads
Claude Sonnet 5: 69.4 (#24), Gemma 2 9B: 32.3 (#276)
| Benchmark | Claude Sonnet 5 | Gemma 2 9B |
|---|---|---|
| LMArena Text | 1443 | 1207 |
| LMArena Creative Writing | 1416 | 1206 |
| EQ-Bench Creative Writing | 1794 | 841 |
| LMArena Multi-Turn | 1454 | 1193 |
| EQ-Bench 4 | 1236 | — |
| LiveBench Language | — | 25.5% |
Frequently asked questions
Is Claude Sonnet 5 better than Gemma 2 9B?
Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 25.7 on the Noometry Index.
Is Claude Sonnet 5 or Gemma 2 9B better for coding?
Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 29.0 in the Noometry coding category.
How many benchmarks do Claude Sonnet 5 and Gemma 2 9B share?
21 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Gemma 2 9B has 35.