# gpt-oss-120b vs Qwen Plus

> gpt-oss-120b and Qwen Plus score almost the same on the Noometry Index (36.0 vs 36.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gpt-oss-120b-vs-qwen-plus
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. gpt-oss-120b scores higher in 4 categories and Qwen Plus in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where gpt-oss-120b leads 50.6 to 22.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 88.9% for gpt-oss-120b and 17.8% for Qwen Plus.
- gpt-oss-120b is cheaper at $0.037 / $0.17 per million input/output tokens, against $0.40 / $1.20 for Qwen Plus.
- Qwen Plus accepts more context: 1M tokens versus 131K.
- gpt-oss-120b has downloadable open weights; the other is API-only.

## Snapshot

| | gpt-oss-120b | Qwen Plus |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 36.0 | 36.7 |
| Rank | 210 | 204 |
| Context | 131K | 1M |
| Input $/M | $0.037 | $0.40 |
| Output $/M | $0.17 | $1.20 |
| Weights | Open | Proprietary |

## Coding

- gpt-oss-120b: 33.2 (#251)
- Qwen Plus: 38.3 (#163)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| LMArena Coding | 1380 | 1328 |
| SWE-bench Verified (bash only) | 26% | — |
| Aider Polyglot | 41.8% | — |
| SciCode | 36% | — |
| WeirdML | 48.2% | — |
| ALE-Bench | 575.62 | — |
| AlgoTune | 1.41 | — |

## Agentic & Tool Use

- gpt-oss-120b: 12.1 (#145)
- Qwen Plus: —

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| Terminal-Bench | 18.7% | — |
| APEX-Agents | 4.4% | — |
| METR Time Horizons | 56.6% | — |
| Vending-Bench 2 | -21.53 | — |

## Reasoning

- gpt-oss-120b: 19.5 (#236)
- Qwen Plus: 27.6 (#101)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| Kagi LLM Benchmark | 58.6% | 63.3% |
| LMArena Hard Prompts | 1364 | 1317 |
| DTBench | 76.3% | 81.1% |
| LMCA | 22.1% | 24% |
| SimpleBench | 22.1% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | 20% | — |
| Mystery Game Puzzles | 2% | — |
| Surface Evolver Bench | 25% | — |
| Epoch Capabilities Index | 139.94 | — |

## Math

- gpt-oss-120b: 50.6 (#43)
- Qwen Plus: 22.0 (#266)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | 17.8% |
| LMArena Math | 1388 | 1326 |
| Omni-MATH | 68.8% | — |
| MATH Level 5 | — | 65.3% |
| FrontierMath (Feb 2025 set) | — | 1.7% |

## Knowledge

- gpt-oss-120b: 42.3 (#89)
- Qwen Plus: 27.4 (#245)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| GPQA Diamond | 75.8% | 48.1% |
| LMArena Expert | 1356 | 1328 |
| MMLU-Pro | 79.5% | — |
| Confabulations | 15.7% | — |
| Vectara Hallucination Rate | 14.2% | — |
| GPQA (HELM) | 68.4% | — |

## Multilingual

- gpt-oss-120b: 48.2 (#142)
- Qwen Plus: 45.3 (#170)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| LMArena Non-English | 1350 | 1310 |
| LMArena Chinese | 1384 | 1347 |
| LMArena Japanese | 1332 | 1251 |
| LMArena Russian | 1343 | 1323 |
| LMArena French | 1370 | — |
| LMArena German | 1355 | — |
| LMArena Korean | 1283 | — |
| LMArena Spanish | 1388 | — |

## Instruction Following

- gpt-oss-120b: 69.5 (#168)
- Qwen Plus: 69.0 (#176)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| LMArena Instruction Following | 1318 | 1303 |
| IFEval | 83.6% | — |

## Long Context

- gpt-oss-120b: 31.4 (#273)
- Qwen Plus: 40.3 (#153)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| LMArena Longer Query | 1319 | 1325 |
| Fiction.LiveBench | 44.4% | — |

## Writing & Preference

- gpt-oss-120b: 46.7 (#213)
- Qwen Plus: 52.4 (#171)

| Benchmark | gpt-oss-120b | Qwen Plus |
|---|---|---|
| LMArena Text | 1366 | 1326 |
| LMArena Creative Writing | 1274 | 1293 |
| LMArena Multi-Turn | 1340 | 1336 |
| Short-Story Creative Writing | 77.1% | — |
| EQ-Bench Creative Writing | 961 | — |
| WildBench | 84.5% | — |

## FAQ

### Is gpt-oss-120b better than Qwen Plus?

gpt-oss-120b and Qwen Plus score almost the same on the Noometry Index (36.0 vs 36.7), so choose on price, context window or the category you care about most.

### Which is cheaper, gpt-oss-120b or Qwen Plus?

gpt-oss-120b is cheaper. It lists at $0.037 per million input tokens and $0.17 per million output tokens; Qwen Plus lists at $0.40 and $1.20.

### Is gpt-oss-120b or Qwen Plus better for coding?

Qwen Plus scores higher on coding benchmarks: 38.3 versus 33.2 in the Noometry coding category.

### Which has the bigger context window?

Qwen Plus does, with 1M tokens against 131K.

### How many benchmarks do gpt-oss-120b and Qwen Plus share?

18 benchmarks have published results for both models. gpt-oss-120b has 48 scored results on Noometry and Qwen Plus has 20.