# o1-mini vs Qwen3.5-9B

> o1-mini and Qwen3.5-9B score almost the same on the Noometry Index (34.0 vs 33.8), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/o1-mini-vs-qwen3-5-9b
- Last updated: 2026-10-11
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. o1-mini scores higher in 2 categories and Qwen3.5-9B in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5-9B leads 23.1 to 8.8.
- The biggest single-benchmark swing is GPQA Diamond: 62.4% for o1-mini and 79% for Qwen3.5-9B.
- Qwen3.5-9B has downloadable open weights; the other is API-only.

## Snapshot

| | o1-mini | Qwen3.5-9B |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 34.0 | 33.8 |
| Rank | 235 | 236 |
| Context | — | 262K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.15 |
| Weights | Proprietary | Open |

## Coding

- o1-mini: 35.5 (#224)
- Qwen3.5-9B: 35.9 (#217)

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| Aider Polyglot | 32.9% | — |
| SciCode | — | 27.5% |
| WeirdML | 36.3% | — |
| LiveBench Coding | 48% | — |
| LMArena Coding | 1362 | — |
| HumanEval+ | 89% | — |
| MBPP+ | 78.8% | — |

## Agentic & Tool Use

- o1-mini: 24.6 (#118)
- Qwen3.5-9B: 14.5 (#151)

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | — | 9.2% |
| Cybench | 10% | — |

## Reasoning

- o1-mini: 8.8 (#346)
- Qwen3.5-9B: 23.1 (#182)

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| Epoch Capabilities Index | 135.82 | 139.46 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 18.1% | — |
| ARC-AGI-1 | 14% | — |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 12% |
| LiveBench Reasoning | 72.3% | — |
| LMArena Hard Prompts | 1333 | — |
| DTBench | — | 71.2% |
| LiveBench Data Analysis | 57.9% | — |
| LMCA | — | 24.5% |
| LiveBench | 57.8% | — |

## Math

- o1-mini: 35.4 (#186)
- Qwen3.5-9B: 34.8 (#192)

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 46.9% | 61.7% |
| MathArena Final-Answer Competitions | — | 48.5% |
| LiveBench Math | 62% | — |
| LMArena Math | 1358 | — |
| MATH Level 5 | 89.2% | — |
| FrontierMath (Feb 2025 set) | 1.7% | — |

## Knowledge

- o1-mini: 34.9 (#192)
- Qwen3.5-9B: 46.0 (#84)

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | 62.4% | 79% |
| Confabulations | 18.6% | — |
| LMArena Expert | 1316 | — |

## Multilingual

- o1-mini: 43.6 (#182)
- Qwen3.5-9B: —

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| LMArena Non-English | 1289 | — |
| LMArena Chinese | 1314 | — |
| LMArena French | 1293 | — |
| LMArena German | 1278 | — |
| LMArena Japanese | 1245 | — |
| LMArena Korean | 1223 | — |
| LMArena Russian | 1283 | — |
| LMArena Spanish | 1303 | — |

## Instruction Following

- o1-mini: 66.7 (#206)
- Qwen3.5-9B: —

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| LiveBench Instruction Following | 65.4% | — |
| LMArena Instruction Following | 1304 | — |

## Long Context

- o1-mini: 40.1 (#161)
- Qwen3.5-9B: —

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| LMArena Longer Query | 1320 | — |

## Writing & Preference

- o1-mini: 48.4 (#202)
- Qwen3.5-9B: —

| Benchmark | o1-mini | Qwen3.5-9B |
|---|---|---|
| LMArena Text | 1317 | — |
| LMArena Creative Writing | 1244 | — |
| Short-Story Creative Writing | 64.9% | — |
| LMArena Multi-Turn | 1314 | — |
| LiveBench Language | 40.9% | — |

## FAQ

### Is o1-mini better than Qwen3.5-9B?

o1-mini and Qwen3.5-9B score almost the same on the Noometry Index (34.0 vs 33.8), so choose on price, context window or the category you care about most.

### Is o1-mini or Qwen3.5-9B better for coding?

They score almost the same on coding (35.5 vs 35.9); test both on your own repository before choosing.

### How many benchmarks do o1-mini and Qwen3.5-9B share?

3 benchmarks have published results for both models. o1-mini has 39 scored results on Noometry and Qwen3.5-9B has 10.