Model comparison
Gemma 3 12B vs Step 3.7 Flash
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 32.1 on the Noometry Index. Gemma 3 12B costs 5.5× less per token, which makes it the better buy when Step 3.7 Flash's lead doesn't matter for your workload.
Last verified . 2 shared benchmarks.
Summary
- They share 2 benchmarks with published results for both. Gemma 3 12B scores higher in 0 categories and Step 3.7 Flash in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.7 Flash leads 42.9 to 22.3.
- The biggest single-benchmark swing is SciCode: 17.4% for Gemma 3 12B and 40% for Step 3.7 Flash.
- Gemma 3 12B is cheaper at $0.05 / $0.15 per million input/output tokens, against $0.18 / $1.11 for Step 3.7 Flash.
- Step 3.7 Flash accepts more context: 256K tokens versus 131K.
Side by side
| Gemma 3 12B | Step 3.7 Flash | |
|---|---|---|
| Provider | StepFun | |
| Noometry Index | 32.1 | 37.3 |
| Released | 2025-03-12 | 2026-05-29 |
| Weights | Open | Open |
| Context window | 131K | 256K |
| Max output | 8K | 256K |
| Input $ / M tokens | $0.05 | $0.18 |
| Output $ / M tokens | $0.15 | $1.11 |
| Results tracked | 24 | 5 |
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Category by category
Coding Step 3.7 Flash leads
Gemma 3 12B: 31.7 (#280), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| SciCode | 17.4% | 40% |
| LMArena Coding | 1281 | — |
| ALE-Bench | — | 694.12 |
Agentic & Tool Use Not comparable
Gemma 3 12B: 25.5 (#108), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| Berkeley Function Calling Leaderboard | 30.4% | — |
Reasoning Step 3.7 Flash leads
Gemma 3 12B: 15.7 (#313), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| CritPt | 0% | 2.3% |
| NYT Connections (extended) | — | 39.7% |
| Chess Puzzles | 0% | — |
| LMArena Hard Prompts | 1309 | — |
| DTBench | 48.8% | — |
| LMCA | 4.5% | — |
| Epoch Capabilities Index | 123.5 | — |
Math Step 3.7 Flash leads
Gemma 3 12B: 22.3 (#279), Step 3.7 Flash: 42.9 (#82)
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| OTIS Mock AIME 2024-2025 | 16.7% | — |
| LMArena Math | 1307 | — |
Knowledge Not comparable
Gemma 3 12B: 26.5 (#257), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| GPQA Diamond | 39.5% | — |
| Vectara Hallucination Rate | 4.4% | — |
| LMArena Expert | 1248 | — |
Multimodal Not comparable
Gemma 3 12B: —, Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| MindCube | 46.7% | — |
Multilingual Not comparable
Gemma 3 12B: 45.7 (#165), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1318 | — |
| LMArena German | 1370 | — |
| LMArena Russian | 1335 | — |
Instruction Following Not comparable
Gemma 3 12B: 68.6 (#186), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1299 | — |
Long Context Not comparable
Gemma 3 12B: 40.0 (#162), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1317 | — |
Writing & Preference Not comparable
Gemma 3 12B: 47.5 (#209), Step 3.7 Flash: —
| Benchmark | Gemma 3 12B | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1334 | — |
| LMArena Creative Writing | 1331 | — |
| EQ-Bench Creative Writing | 1126 | — |
| LMArena Multi-Turn | 1334 | — |
Frequently asked questions
Is Gemma 3 12B better than Step 3.7 Flash?
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 32.1 on the Noometry Index. Gemma 3 12B costs 5.5× less per token, which makes it the better buy when Step 3.7 Flash's lead doesn't matter for your workload.
Which is cheaper, Gemma 3 12B or Step 3.7 Flash?
Gemma 3 12B is cheaper. It lists at $0.05 per million input tokens and $0.15 per million output tokens; Step 3.7 Flash lists at $0.18 and $1.11.
Is Gemma 3 12B or Step 3.7 Flash better for coding?
Step 3.7 Flash scores higher on coding benchmarks: 40.0 versus 31.7 in the Noometry coding category.
Which has the bigger context window?
Step 3.7 Flash does, with 256K tokens against 131K.
How many benchmarks do Gemma 3 12B and Step 3.7 Flash share?
2 benchmarks have published results for both models. Gemma 3 12B has 24 scored results on Noometry and Step 3.7 Flash has 5.