# GPT-4.5 vs MiMo-V2-Pro

> MiMo-V2-Pro is the stronger model overall, scoring 42.4 to 36.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4-5-vs-mimo-v2-pro
- Last updated: 2026-10-10
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. GPT-4.5 scores higher in 0 categories and MiMo-V2-Pro in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where MiMo-V2-Pro leads 40.8 to 32.4.

## Snapshot

| | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 36.9 | 42.4 |
| Rank | 200 | 102 |
| Context | — | 1.05M |
| Input $/M | — | $0.43 |
| Output $/M | — | $0.87 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-4.5: 41.8 (#102)
- MiMo-V2-Pro: 43.4 (#76)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Coding | 1397 | 1476 |
| Aider Polyglot | 44.9% | — |
| LMArena WebDev | — | 1433 |
| WeirdML | 39.4% | — |
| LiveBench Coding | 75.2% | — |
| ALE-Bench | — | 785.17 |

## Agentic & Tool Use

- GPT-4.5: 27.6 (#92)
- MiMo-V2-Pro: —

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| Cybench | 17.5% | — |

## Reasoning

- GPT-4.5: 14.1 (#320)
- MiMo-V2-Pro: 21.3 (#200)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Hard Prompts | 1404 | 1457 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 34.5% | — |
| NYT Connections (extended) | — | 25.8% |
| ARC-AGI-1 | 10.3% | — |
| EnigmaEval | 3.2% | — |
| Thematic Generalization | — | 45.9% |
| LiveBench Reasoning | 71.1% | — |
| LiveBench Data Analysis | 64.3% | — |
| Epoch Capabilities Index | 136.74 | — |
| ForecastBench | 61.7 | — |
| LiveBench | 69% | — |

## Math

- GPT-4.5: 31.0 (#200)
- MiMo-V2-Pro: 36.7 (#104)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Math | 1412 | 1447 |
| OTIS Mock AIME 2024-2025 | 37.8% | — |
| LiveBench Math | 69.3% | — |
| MATH Level 5 | 78.6% | — |

## Knowledge

- GPT-4.5: 32.4 (#205)
- MiMo-V2-Pro: 40.8 (#106)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Expert | 1394 | 1479 |
| GPQA Diamond | 68.7% | — |
| Humanity's Last Exam | 5.4% | — |
| Confabulations | 13.6% | — |

## Multimodal

- GPT-4.5: 37.0 (#68)
- MiMo-V2-Pro: —

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |

## Multilingual

- GPT-4.5: 52.7 (#78)
- MiMo-V2-Pro: 52.9 (#77)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Non-English | 1413 | 1416 |
| LMArena Chinese | 1421 | 1455 |
| LMArena French | 1417 | 1470 |
| LMArena German | 1457 | 1417 |
| LMArena Japanese | 1416 | 1366 |
| LMArena Korean | 1392 | 1401 |
| LMArena Russian | 1419 | 1427 |
| LMArena Spanish | — | 1458 |

## Instruction Following

- GPT-4.5: 72.8 (#129)
- MiMo-V2-Pro: 76.2 (#46)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Instruction Following | 1404 | 1444 |
| LiveBench Instruction Following | 72.3% | — |

## Long Context

- GPT-4.5: 40.4 (#150)
- MiMo-V2-Pro: 41.5 (#133)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Longer Query | 1406 | 1455 |
| Fiction.LiveBench | 63.9% | — |
| CL-bench | — | 15.7% |
| CL-bench Life | — | 6.9% |

## Writing & Preference

- GPT-4.5: 57.1 (#129)
- MiMo-V2-Pro: 62.9 (#67)

| Benchmark | GPT-4.5 | MiMo-V2-Pro |
|---|---|---|
| LMArena Text | 1417 | 1436 |
| LMArena Creative Writing | 1394 | 1415 |
| LMArena Multi-Turn | 1444 | 1456 |
| Short-Story Creative Writing | 75.6% | — |
| EQ-Bench Creative Writing | 1258 | — |
| LiveBench Language | 61.5% | — |

## FAQ

### Is GPT-4.5 better than MiMo-V2-Pro?

MiMo-V2-Pro is the stronger model overall, scoring 42.4 to 36.9 on the Noometry Index.

### Is GPT-4.5 or MiMo-V2-Pro better for coding?

MiMo-V2-Pro scores higher on coding benchmarks: 43.4 versus 41.8 in the Noometry coding category.

### How many benchmarks do GPT-4.5 and MiMo-V2-Pro share?

16 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and MiMo-V2-Pro has 23.