Model comparison
Gemini 3 Flash Preview vs MiMo-V2.5
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 43.4 on the Noometry Index. MiMo-V2.5 costs 6.4× less per token, which makes it the better buy when Gemini 3 Flash Preview's lead doesn't matter for your workload.
Last verified . 21 shared benchmarks.
GoogleSummary
- They share 21 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 9 categories and MiMo-V2.5 in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Flash Preview leads 49.2 to 28.6.
- MiMo-V2.5 is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.50 / $3 for Gemini 3 Flash Preview.
- MiMo-V2.5 has downloadable open weights; the other is API-only.
Side by side
| Gemini 3 Flash Preview | MiMo-V2.5 | |
|---|---|---|
| Provider | Xiaomi | |
| Noometry Index | 52.3 | 43.4 |
| Released | 2025-12-17 | 2026-04-22 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 1.05M |
| Max output | 66K | 131K |
| Input $ / M tokens | $0.50 | $0.14 |
| Output $ / M tokens | $3 | $0.28 |
| Results tracked | 59 | 23 |
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Category by category
Coding Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 50.9 (#42), MiMo-V2.5: 43.9 (#81)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena WebDev | 1439 | 1438 |
| LMArena Coding | 1460 | 1469 |
| ALE-Bench | 1,367 | 513.95 |
| SWE-bench Verified | 75.4% | — |
| SWE-bench Verified (bash only) | 75.8% | — |
| SWE-bench Multilingual | 72.7% | — |
| SciCode | — | 43.1% |
| GSO | 9.8% | — |
| WeirdML | 61.6% | — |
Agentic & Tool Use Not comparable
Gemini 3 Flash Preview: 38.7 (#29), MiMo-V2.5: —
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| Terminal-Bench | 64.3% | — |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 27.3% | — |
| τ²-bench Retail | 76.8% | — |
| τ²-bench Telecom | 91.2% | — |
| DeepResearch Bench | 49.8% | — |
| BALROG | 48.1% | — |
| GDP.pdf | 10% | — |
| LMArena Search | 1198 | — |
| Vending-Bench 2 | 3,635 | — |
Reasoning Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 49.2 (#37), MiMo-V2.5: 28.6 (#101)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Hard Prompts | 1465 | 1450 |
| ARC-AGI-2 | 33.6% | — |
| SimpleBench | 61.1% | — |
| NYT Connections (extended) | 83.1% | — |
| ARC-AGI-1 | 84.7% | — |
| CritPt | — | 3.7% |
| Chess Puzzles | 40% | — |
| Mystery Game Puzzles | 26% | — |
| DTBench | 89.1% | — |
| LMCA | 43.1% | — |
| Epoch Capabilities Index | 151.8 | — |
| ForecastBench | 58.5 | — |
Math Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 51.7 (#55), MiMo-V2.5: 36.8 (#163)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| ProofBench | 15% | 16% |
| LMArena Math | 1473 | 1436 |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 17.1% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| FrontierMath (Feb 2025 set) | 35.6% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 58.8 (#33), MiMo-V2.5: 40.8 (#115)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Expert | 1462 | 1460 |
| GPQA Diamond | 89.4% | — |
| SimpleQA Verified | 66.8% | — |
| Vectara Hallucination Rate | 13.5% | — |
Multimodal Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 45.5 (#16), MiMo-V2.5: 39.8 (#54)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | 1285 | 1247 |
| GeoBench | 88% | — |
| VPCT | 72.6% | — |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1413 | — |
Multilingual Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 55.7 (#27), MiMo-V2.5: 51.9 (#99)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | 1458 | 1404 |
| LMArena Chinese | 1511 | 1468 |
| LMArena French | 1477 | 1447 |
| LMArena German | 1497 | 1421 |
| LMArena Japanese | 1489 | 1306 |
| LMArena Korean | 1443 | 1363 |
| LMArena Russian | 1480 | 1395 |
| LMArena Spanish | 1469 | 1416 |
Instruction Following Too close to call
Gemini 3 Flash Preview: 75.7 (#56), MiMo-V2.5: 75.5 (#60)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | 1437 | 1434 |
Long Context Too close to call
Gemini 3 Flash Preview: 44.4 (#67), MiMo-V2.5: 44.2 (#73)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | 1452 | 1445 |
Writing & Preference Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 65.5 (#45), MiMo-V2.5: 61.6 (#86)
| Benchmark | Gemini 3 Flash Preview | MiMo-V2.5 |
|---|---|---|
| LMArena Text | 1466 | 1428 |
| LMArena Creative Writing | 1457 | 1393 |
| LMArena Multi-Turn | 1471 | 1445 |
Frequently asked questions
Is Gemini 3 Flash Preview better than MiMo-V2.5?
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 43.4 on the Noometry Index. MiMo-V2.5 costs 6.4× less per token, which makes it the better buy when Gemini 3 Flash Preview's lead doesn't matter for your workload.
Which is cheaper, Gemini 3 Flash Preview or MiMo-V2.5?
MiMo-V2.5 is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Gemini 3 Flash Preview lists at $0.50 and $3.
Is Gemini 3 Flash Preview or MiMo-V2.5 better for coding?
Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 43.9 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do Gemini 3 Flash Preview and MiMo-V2.5 share?
21 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and MiMo-V2.5 has 23.