# GPT-5 Mini vs MiMo-V2.6-Pro

> MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 41.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-mini-vs-mimo-v2-6-pro
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. GPT-5 Mini scores higher in 1 category and MiMo-V2.6-Pro in 9 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2.6-Pro leads 43.1 to 23.9.
- The biggest single-benchmark swing is ProofBench: 9% for GPT-5 Mini and 70% for MiMo-V2.6-Pro.
- MiMo-V2.6-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $0.25 / $2 for GPT-5 Mini.
- MiMo-V2.6-Pro accepts more context: 1.05M tokens versus 400K.
- MiMo-V2.6-Pro has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 41.8 | 50.3 |
| Rank | 128 | 49 |
| Context | 400K | 1.05M |
| Input $/M | $0.25 | $0.43 |
| Output $/M | $2 | $0.87 |
| Weights | Proprietary | Open |

## Coding

- GPT-5 Mini: 40.1 (#146)
- MiMo-V2.6-Pro: 55.5 (#23)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| SciCode | 39.2% | 60.9% |
| LMArena Coding | 1406 | 1534 |
| ALE-Bench | 799.77 | 1,158 |
| SWE-bench Verified | 64.7% | — |
| SWE-bench Verified (bash only) | 59.8% | — |
| LMArena WebDev | — | 1629 |
| SWE-bench Multilingual | 39.7% | — |
| WeirdML | 52.7% | — |
| AlgoTune | 1.38 | — |

## Agentic & Tool Use

- GPT-5 Mini: 31.1 (#70)
- MiMo-V2.6-Pro: 37.5 (#35)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| Terminal-Bench | 34.8% | — |
| APEX-Agents | — | 59.5% |
| Berkeley Function Calling Leaderboard | 55.5% | — |
| Vending-Bench 2 | -31.18 | — |

## Reasoning

- GPT-5 Mini: 23.9 (#168)
- MiMo-V2.6-Pro: 43.1 (#50)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| CritPt | 0% | 26.6% |
| LMArena Hard Prompts | 1380 | 1512 |
| ARC-AGI-2 | 4.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 54.3% | — |
| Chess Puzzles | 30% | — |
| EnigmaEval | 8.2% | — |
| Mystery Game Puzzles | 10% | — |
| DTBench | 80.5% | — |
| LMCA | 34.2% | — |
| Epoch Capabilities Index | 145.52 | — |
| ForecastBench | 61 | — |

## Math

- GPT-5 Mini: 46.7 (#69)
- MiMo-V2.6-Pro: 54.5 (#45)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| ProofBench | 9% | 70% |
| LMArena Math | 1378 | 1494 |
| FrontierMath (Tiers 1-3) | 46.7% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 86.7% | — |
| Omni-MATH | 72.2% | — |
| MATH Level 5 | 97.8% | — |
| FrontierMath (Feb 2025 set) | 27.2% | — |
| FrontierMath Tier 4 (v1) | 6.3% | — |

## Knowledge

- GPT-5 Mini: 45.6 (#86)
- MiMo-V2.6-Pro: 43.5 (#92)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Expert | 1379 | 1543 |
| GPQA Diamond | 75% | — |
| Humanity's Last Exam | 19.4% | — |
| SimpleQA Verified | 21.6% | — |
| MMLU-Pro | 83.5% | — |
| Confabulations | 13.3% | — |
| Vectara Hallucination Rate | 12.9% | — |
| GPQA (HELM) | 75.6% | — |

## Multimodal

- GPT-5 Mini: 35.6 (#85)
- MiMo-V2.6-Pro: 40.8 (#43)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Vision | 1202 | 1264 |
| VPCT | 40.2% | — |

## Multilingual

- GPT-5 Mini: 48.9 (#137)
- MiMo-V2.6-Pro: 56.9 (#14)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Non-English | 1363 | 1474 |
| LMArena Chinese | 1385 | 1529 |
| LMArena Russian | 1362 | 1480 |
| LMArena French | 1386 | — |
| LMArena German | 1366 | — |
| LMArena Japanese | 1341 | — |
| LMArena Korean | 1308 | — |
| LMArena Spanish | 1355 | — |

## Instruction Following

- GPT-5 Mini: 76.2 (#46)
- MiMo-V2.6-Pro: 78.2 (#12)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Instruction Following | 1357 | 1493 |
| IFEval | 92.7% | — |

## Long Context

- GPT-5 Mini: 41.9 (#132)
- MiMo-V2.6-Pro: 46.0 (#27)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Longer Query | 1355 | 1501 |
| Fiction.LiveBench | 69.4% | — |

## Writing & Preference

- GPT-5 Mini: 55.2 (#148)
- MiMo-V2.6-Pro: 66.8 (#33)

| Benchmark | GPT-5 Mini | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Text | 1373 | 1492 |
| LMArena Creative Writing | 1325 | 1468 |
| LMArena Multi-Turn | 1363 | 1464 |
| Short-Story Creative Writing | 83.1% | — |
| EQ-Bench Creative Writing | 1313 | — |
| WildBench | 85.5% | — |

## FAQ

### Is GPT-5 Mini better than MiMo-V2.6-Pro?

MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 41.8 on the Noometry Index.

### Which is cheaper, GPT-5 Mini or MiMo-V2.6-Pro?

MiMo-V2.6-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; GPT-5 Mini lists at $0.25 and $2.

### Is GPT-5 Mini or MiMo-V2.6-Pro better for coding?

MiMo-V2.6-Pro scores higher on coding benchmarks: 55.5 versus 40.1 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2.6-Pro does, with 1.05M tokens against 400K.

### How many benchmarks do GPT-5 Mini and MiMo-V2.6-Pro share?

17 benchmarks have published results for both models. GPT-5 Mini has 60 scored results on Noometry and MiMo-V2.6-Pro has 19.