Model comparison
Gemma 2B vs GPT-5.5 Instant
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 29.6 on the Noometry Index.
Last verified . 12 shared benchmarks.
GoogleSummary
- They share 12 benchmarks with published results for both. Gemma 2B scores higher in 1 category and GPT-5.5 Instant in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5.5 Instant leads 61.8 to 24.0.
- Gemma 2B has downloadable open weights; the other is API-only.
Side by side
| Gemma 2B | GPT-5.5 Instant | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 29.6 | 42.7 |
| Released | 2024-02-21 | 2026-05-05 |
| Weights | Open | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 23 | 27 |
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Category by category
Coding GPT-5.5 Instant leads
Gemma 2B: 29.4 (#305), GPT-5.5 Instant: 44.3 (#74)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Coding | 1010 | 1433 |
| SciCode | — | 48.6% |
| HumanEval+ | 20.7% | — |
| MBPP+ | 34.1% | — |
Reasoning GPT-5.5 Instant leads
Gemma 2B: 18.8 (#275), GPT-5.5 Instant: 24.9 (#155)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 989 | 1426 |
| Epoch Capabilities Index | 94.2 | 142.52 |
| CritPt | — | 0% |
| Chess Puzzles | — | 12% |
| BIG-Bench Hard | 35.2% | — |
| HellaSwag | 71.4% | — |
| PIQA | 77.3% | — |
| WinoGrande | 65.4% | — |
Math Gemma 2B leads
Gemma 2B: 30.0 (#239), GPT-5.5 Instant: 26.5 (#259)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Math | 1009 | 1420 |
| FrontierMath (Tiers 1-3) | — | 26.3% |
| FrontierMath Tier 4 | — | 2.4% |
| OTIS Mock AIME 2024-2025 | — | 68.1% |
| GSM8K | 17.7% | — |
Knowledge Not comparable
Gemma 2B: —, GPT-5.5 Instant: 48.9 (#74)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| GPQA Diamond | — | 82.5% |
| LMArena Expert | — | 1409 |
| ARC (AI2) Challenge | 42.1% | — |
| BoolQ | 69.4% | — |
| MMLU | 42.3% | — |
| TriviaQA | 53.2% | — |
Multimodal Not comparable
Gemma 2B: —, GPT-5.5 Instant: 40.0 (#52)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Vision | — | 1250 |
| LMArena Document | — | 1403 |
Multilingual GPT-5.5 Instant leads
Gemma 2B: 23.0 (#294), GPT-5.5 Instant: 52.8 (#80)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Non-English | 958 | 1417 |
| LMArena Chinese | 986 | 1456 |
| LMArena Russian | 937 | 1431 |
| LMArena French | — | 1428 |
| LMArena German | — | 1411 |
| LMArena Japanese | — | 1408 |
| LMArena Korean | — | 1392 |
| LMArena Spanish | — | 1429 |
Instruction Following GPT-5.5 Instant leads
Gemma 2B: 48.5 (#302), GPT-5.5 Instant: 74.2 (#100)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Instruction Following | 970 | 1406 |
Long Context GPT-5.5 Instant leads
Gemma 2B: 29.9 (#291), GPT-5.5 Instant: 43.4 (#96)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Longer Query | 981 | 1422 |
Writing & Preference GPT-5.5 Instant leads
Gemma 2B: 24.0 (#308), GPT-5.5 Instant: 61.8 (#85)
| Benchmark | Gemma 2B | GPT-5.5 Instant |
|---|---|---|
| LMArena Text | 1002 | 1419 |
| LMArena Creative Writing | 987 | 1419 |
| LMArena Multi-Turn | 945 | 1433 |
Frequently asked questions
Is Gemma 2B better than GPT-5.5 Instant?
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 29.6 on the Noometry Index.
Is Gemma 2B or GPT-5.5 Instant better for coding?
GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 29.4 in the Noometry coding category.
How many benchmarks do Gemma 2B and GPT-5.5 Instant share?
12 benchmarks have published results for both models. Gemma 2B has 23 scored results on Noometry and GPT-5.5 Instant has 27.