Model comparison
Gemma 2 9B vs GPT-5.3 Chat
GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 25.9 on the Noometry Index.
Last verified . 18 shared benchmarks.
GoogleSummary
- They share 18 benchmarks with published results for both. Gemma 2 9B scores higher in 0 categories and GPT-5.3 Chat in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5.3 Chat leads 63.1 to 32.1.
- Gemma 2 9B has downloadable open weights; the other is API-only.
Side by side
| Gemma 2 9B | GPT-5.3 Chat | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 25.9 | 42.8 |
| Released | 2024-06-24 | 2026-03-03 |
| Weights | Open | Proprietary |
| Context window | — | 128K |
| Max output | — | 16K |
| Input $ / M tokens | — | $1.75 |
| Output $ / M tokens | — | $14 |
| Results tracked | 35 | 18 |
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Category by category
Coding GPT-5.3 Chat leads
Gemma 2 9B: 29.4 (#304), GPT-5.3 Chat: 41.4 (#124)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Coding | 1173 | 1408 |
| BigCodeBench Instruct | 34.7% | — |
| LiveBench Coding | 22.5% | — |
| BigCodeBench Complete | 40.6% | — |
Reasoning GPT-5.3 Chat leads
Gemma 2 9B: 15.9 (#309), GPT-5.3 Chat: 28.5 (#102)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Hard Prompts | 1171 | 1399 |
| LiveBench Reasoning | 15.2% | — |
| LiveBench Data Analysis | 36.4% | — |
| Epoch Capabilities Index | 119.83 | — |
| LiveBench | 28.7% | — |
| PIQA | 83.7% | — |
Math GPT-5.3 Chat leads
Gemma 2 9B: 9.9 (#318), GPT-5.3 Chat: 38.2 (#142)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Math | 1183 | 1389 |
| OTIS Mock AIME 2024-2025 | 0.6% | — |
| LiveBench Math | 19.8% | — |
| MATH Level 5 | 21% | — |
| GSM8K | 84.9% | — |
Knowledge GPT-5.3 Chat leads
Gemma 2 9B: 9.7 (#305), GPT-5.3 Chat: 38.8 (#140)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Expert | 1147 | 1397 |
| GPQA Diamond | 27.5% | — |
| BoolQ | 85.7% | — |
| MMLU | 72.1% | — |
Multilingual GPT-5.3 Chat leads
Gemma 2 9B: 36.6 (#238), GPT-5.3 Chat: 50.3 (#124)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Non-English | 1188 | 1382 |
| LMArena Chinese | 1185 | 1432 |
| LMArena French | 1190 | 1397 |
| LMArena German | 1186 | 1384 |
| LMArena Japanese | 1144 | 1352 |
| LMArena Korean | 1137 | 1346 |
| LMArena Russian | 1200 | 1400 |
| LMArena Spanish | 1200 | 1371 |
Instruction Following GPT-5.3 Chat leads
Gemma 2 9B: 57.6 (#269), GPT-5.3 Chat: 72.8 (#129)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Instruction Following | 1178 | 1378 |
| LiveBench Instruction Following | 52.6% | — |
Long Context GPT-5.3 Chat leads
Gemma 2 9B: 36.3 (#233), GPT-5.3 Chat: 42.6 (#120)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Longer Query | 1197 | 1396 |
Writing & Preference GPT-5.3 Chat leads
Gemma 2 9B: 32.1 (#281), GPT-5.3 Chat: 63.1 (#68)
| Benchmark | Gemma 2 9B | GPT-5.3 Chat |
|---|---|---|
| LMArena Text | 1207 | 1389 |
| LMArena Creative Writing | 1206 | 1355 |
| EQ-Bench Creative Writing | 841 | 1690 |
| LMArena Multi-Turn | 1193 | 1412 |
| LiveBench Language | 25.5% | — |
Frequently asked questions
Is Gemma 2 9B better than GPT-5.3 Chat?
GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 25.9 on the Noometry Index.
Is Gemma 2 9B or GPT-5.3 Chat better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 29.4 in the Noometry coding category.
How many benchmarks do Gemma 2 9B and GPT-5.3 Chat share?
18 benchmarks have published results for both models. Gemma 2 9B has 35 scored results on Noometry and GPT-5.3 Chat has 18.