# GPT-5.4 Pro vs MiMo-V2-Omni

> GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 42.9 on the Noometry Index. MiMo-V2-Omni costs 386× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-5-4-pro-vs-mimo-v2-omni
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 28.6.
- MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 262K.

## Snapshot

| | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 58.8 | 42.9 |
| Rank | 16 | 91 |
| Context | 1.05M | 262K |
| Input $/M | $30 | $0.14 |
| Output $/M | $180 | $0.28 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.4 Pro: 42.6 (#89)
- MiMo-V2-Omni: 42.7 (#87)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| WeirdML | 57.4% | — |
| LMArena Coding | — | 1467 |

## Reasoning

- GPT-5.4 Pro: 71.0 (#10)
- MiMo-V2-Omni: 28.6 (#86)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| CritPt | 30% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| LMArena Hard Prompts | — | 1445 |
| Epoch Capabilities Index | 159.12 | — |

## Math

- GPT-5.4 Pro: 72.0 (#17)
- MiMo-V2-Omni: 36.4 (#112)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| LMArena Math | — | 1432 |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |

## Knowledge

- GPT-5.4 Pro: 68.3 (#6)
- MiMo-V2-Omni: 39.9 (#114)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| GPQA Diamond | 94.6% | — |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
| LMArena Expert | — | 1449 |

## Multimodal

- GPT-5.4 Pro: —
- MiMo-V2-Omni: 37.9 (#62)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |

## Multilingual

- GPT-5.4 Pro: —
- MiMo-V2-Omni: 52.0 (#97)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1469 |
| LMArena French | — | 1448 |
| LMArena German | — | 1398 |
| LMArena Japanese | — | 1318 |
| LMArena Korean | — | 1355 |
| LMArena Russian | — | 1412 |
| LMArena Spanish | — | 1432 |

## Instruction Following

- GPT-5.4 Pro: —
- MiMo-V2-Omni: 75.4 (#62)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | — | 1428 |

## Long Context

- GPT-5.4 Pro: —
- MiMo-V2-Omni: 44.1 (#72)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | — | 1442 |

## Writing & Preference

- GPT-5.4 Pro: —
- MiMo-V2-Omni: 61.6 (#83)

| Benchmark | GPT-5.4 Pro | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | — | 1424 |
| LMArena Creative Writing | — | 1393 |
| LMArena Multi-Turn | — | 1446 |

## FAQ

### Is GPT-5.4 Pro better than MiMo-V2-Omni?

GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 42.9 on the Noometry Index. MiMo-V2-Omni costs 386× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

### Which is cheaper, GPT-5.4 Pro or MiMo-V2-Omni?

MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; GPT-5.4 Pro lists at $30 and $180.

### Is GPT-5.4 Pro or MiMo-V2-Omni better for coding?

They score almost the same on coding (42.6 vs 42.7); test both on your own repository before choosing.

### Which has the bigger context window?

GPT-5.4 Pro does, with 1.05M tokens against 262K.

### How many benchmarks do GPT-5.4 Pro and MiMo-V2-Omni share?

0 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and MiMo-V2-Omni has 18.