Model comparison
Gemma 3 12B vs MiMo-V2-Omni
MiMo-V2-Omni is the stronger model overall, scoring 42.9 to 31.8 on the Noometry Index. Gemma 3 12B costs 2.3× less per token, which makes it the better buy when MiMo-V2-Omni's lead doesn't matter for your workload.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. Gemma 3 12B scores higher in 0 categories and MiMo-V2-Omni in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2-Omni leads 36.4 to 21.0.
- Gemma 3 12B is cheaper at $0.05 / $0.15 per million input/output tokens, against $0.14 / $0.28 for MiMo-V2-Omni.
- MiMo-V2-Omni accepts more context: 262K tokens versus 131K.
- Gemma 3 12B has downloadable open weights; the other is API-only.
Side by side
| Gemma 3 12B | MiMo-V2-Omni | |
|---|---|---|
| Provider | Xiaomi | |
| Noometry Index | 31.8 | 42.9 |
| Released | 2025-03-12 | 2026-03-18 |
| Weights | Open | Proprietary |
| Context window | 131K | 262K |
| Max output | 8K | 131K |
| Input $ / M tokens | $0.05 | $0.14 |
| Output $ / M tokens | $0.15 | $0.28 |
| Results tracked | 24 | 18 |
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Category by category
Coding MiMo-V2-Omni leads
Gemma 3 12B: 31.2 (#276), MiMo-V2-Omni: 42.7 (#87)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1281 | 1467 |
| SciCode | 17.4% | — |
Agentic & Tool Use Not comparable
Gemma 3 12B: 25.3 (#101), MiMo-V2-Omni: —
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| Berkeley Function Calling Leaderboard | 30.4% | — |
Reasoning MiMo-V2-Omni leads
Gemma 3 12B: 15.2 (#307), MiMo-V2-Omni: 28.6 (#86)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Hard Prompts | 1309 | 1445 |
| CritPt | 0% | — |
| Chess Puzzles | 0% | — |
| DTBench | 48.8% | — |
| LMCA | 4.5% | — |
| Epoch Capabilities Index | 123.49 | — |
Math MiMo-V2-Omni leads
Gemma 3 12B: 21.0 (#273), MiMo-V2-Omni: 36.4 (#112)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1307 | 1432 |
| OTIS Mock AIME 2024-2025 | 16.7% | — |
Knowledge MiMo-V2-Omni leads
Gemma 3 12B: 26.5 (#250), MiMo-V2-Omni: 39.9 (#114)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | 1248 | 1449 |
| GPQA Diamond | 39.5% | — |
| Vectara Hallucination Rate | 4.4% | — |
Multimodal Not comparable
Gemma 3 12B: —, MiMo-V2-Omni: 37.9 (#62)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |
| MindCube | 46.7% | — |
Multilingual MiMo-V2-Omni leads
Gemma 3 12B: 45.9 (#160), MiMo-V2-Omni: 52.0 (#97)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | 1318 | 1404 |
| LMArena German | 1370 | 1398 |
| LMArena Russian | 1335 | 1412 |
| LMArena Chinese | — | 1469 |
| LMArena French | — | 1448 |
| LMArena Japanese | — | 1318 |
| LMArena Korean | — | 1355 |
| LMArena Spanish | — | 1432 |
Instruction Following MiMo-V2-Omni leads
Gemma 3 12B: 68.8 (#179), MiMo-V2-Omni: 75.4 (#62)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | 1299 | 1428 |
Long Context MiMo-V2-Omni leads
Gemma 3 12B: 40.0 (#157), MiMo-V2-Omni: 44.1 (#72)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | 1317 | 1442 |
Writing & Preference MiMo-V2-Omni leads
Gemma 3 12B: 47.7 (#205), MiMo-V2-Omni: 61.6 (#83)
| Benchmark | Gemma 3 12B | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | 1334 | 1424 |
| LMArena Creative Writing | 1331 | 1393 |
| LMArena Multi-Turn | 1334 | 1446 |
| EQ-Bench Creative Writing | 1126 | — |
Frequently asked questions
Is Gemma 3 12B better than MiMo-V2-Omni?
MiMo-V2-Omni is the stronger model overall, scoring 42.9 to 31.8 on the Noometry Index. Gemma 3 12B costs 2.3× less per token, which makes it the better buy when MiMo-V2-Omni's lead doesn't matter for your workload.
Which is cheaper, Gemma 3 12B or MiMo-V2-Omni?
Gemma 3 12B is cheaper. It lists at $0.05 per million input tokens and $0.15 per million output tokens; MiMo-V2-Omni lists at $0.14 and $0.28.
Is Gemma 3 12B or MiMo-V2-Omni better for coding?
MiMo-V2-Omni scores higher on coding benchmarks: 42.7 versus 31.2 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2-Omni does, with 262K tokens against 131K.
How many benchmarks do Gemma 3 12B and MiMo-V2-Omni share?
12 benchmarks have published results for both models. Gemma 3 12B has 24 scored results on Noometry and MiMo-V2-Omni has 18.