Model comparison
Gemma 2B vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 29.6 on the Noometry Index.
Last verified . 11 shared benchmarks.
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StepFunSummary
- They share 11 benchmarks with published results for both. Gemma 2B scores higher in 0 categories and Step 3.5 Flash in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 3.5 Flash leads 58.8 to 24.0.
Side by side
| Gemma 2B | Step 3.5 Flash | |
|---|---|---|
| Provider | StepFun | |
| Noometry Index | 29.6 | 42.3 |
| Released | 2024-02-21 | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 23 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Gemma 2B: 29.4 (#305), Step 3.5 Flash: 42.4 (#105)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1010 | 1436 |
| HumanEval+ | 20.7% | — |
| MBPP+ | 34.1% | — |
Reasoning Step 3.5 Flash leads
Gemma 2B: 18.8 (#275), Step 3.5 Flash: 22.2 (#202)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 989 | 1411 |
| NYT Connections (extended) | — | 28.4% |
| BIG-Bench Hard | 35.2% | — |
| Epoch Capabilities Index | 94.2 | — |
| HellaSwag | 71.4% | — |
| PIQA | 77.3% | — |
| WinoGrande | 65.4% | — |
Math Step 3.5 Flash leads
Gemma 2B: 30.0 (#239), Step 3.5 Flash: 42.6 (#84)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1009 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| GSM8K | 17.7% | — |
Knowledge Not comparable
Gemma 2B: —, Step 3.5 Flash: 39.6 (#132)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | — | 1421 |
| ARC (AI2) Challenge | 42.1% | — |
| BoolQ | 69.4% | — |
| MMLU | 42.3% | — |
| TriviaQA | 53.2% | — |
Multilingual Step 3.5 Flash leads
Gemma 2B: 23.0 (#294), Step 3.5 Flash: 50.5 (#119)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 958 | 1385 |
| LMArena Chinese | 986 | 1447 |
| LMArena Russian | 937 | 1385 |
| LMArena French | — | 1421 |
| LMArena German | — | 1405 |
| LMArena Japanese | — | 1354 |
| LMArena Korean | — | 1352 |
| LMArena Spanish | — | 1419 |
Instruction Following Step 3.5 Flash leads
Gemma 2B: 48.5 (#302), Step 3.5 Flash: 73.1 (#124)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 970 | 1385 |
Long Context Step 3.5 Flash leads
Gemma 2B: 29.9 (#291), Step 3.5 Flash: 42.8 (#117)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 981 | 1402 |
Writing & Preference Step 3.5 Flash leads
Gemma 2B: 24.0 (#308), Step 3.5 Flash: 58.8 (#113)
| Benchmark | Gemma 2B | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1002 | 1403 |
| LMArena Creative Writing | 987 | 1357 |
| LMArena Multi-Turn | 945 | 1405 |
Frequently asked questions
Is Gemma 2B better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 29.6 on the Noometry Index.
Is Gemma 2B or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 29.4 in the Noometry coding category.
How many benchmarks do Gemma 2B and Step 3.5 Flash share?
11 benchmarks have published results for both models. Gemma 2B has 23 scored results on Noometry and Step 3.5 Flash has 19.