# Gemini 1.0 Pro vs gpt-oss-20b

> gpt-oss-20b is the stronger model overall, scoring 32.1 to 27.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-0-pro-vs-gpt-oss-20b
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Gemini 1.0 Pro scores higher in 1 category and gpt-oss-20b in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where gpt-oss-20b leads 37.6 to 8.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.1% for Gemini 1.0 Pro and 65.3% for gpt-oss-20b.
- gpt-oss-20b has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 27.1 | 32.1 |
| Rank | 327 | 249 |
| Context | — | 131K |
| Input $/M | — | $0.018 |
| Output $/M | — | $0.09 |
| Weights | Proprietary | Open |

## Coding

- Gemini 1.0 Pro: 31.6 (#270)
- gpt-oss-20b: 37.1 (#185)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Coding | 1108 | 1307 |
| SciCode | — | 34.4% |
| WeirdML | — | 40.9% |
| ALE-Bench | — | 566.05 |
| HumanEval+ | 55.5% | — |
| MBPP+ | 61.4% | — |

## Agentic & Tool Use

- Gemini 1.0 Pro: —
- gpt-oss-20b: 9.2 (#146)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| Terminal-Bench | — | 3.4% |

## Reasoning

- Gemini 1.0 Pro: 16.4 (#292)
- gpt-oss-20b: 18.8 (#251)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Hard Prompts | 1109 | 1274 |
| DTBench | 45.9% | 68% |
| Epoch Capabilities Index | 116.97 | 137.81 |
| Kagi LLM Benchmark | — | 53.2% |
| CritPt | — | 1.4% |
| Chess Puzzles | — | 4% |
| LMCA | — | 14.5% |

## Math

- Gemini 1.0 Pro: 8.7 (#315)
- gpt-oss-20b: 37.6 (#93)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.1% | 65.3% |
| LMArena Math | 1132 | 1317 |
| Omni-MATH | — | 56.5% |
| MATH Level 5 | 11.2% | — |

## Knowledge

- Gemini 1.0 Pro: 15.5 (#286)
- gpt-oss-20b: 34.6 (#186)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| GPQA Diamond | 34% | 60.8% |
| LMArena Expert | 1059 | 1258 |
| MMLU-Pro | — | 74% |
| GPQA (HELM) | — | 59.4% |
| MMLU | 70% | — |

## Multilingual

- Gemini 1.0 Pro: 33.5 (#247)
- gpt-oss-20b: 42.4 (#192)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Non-English | 1138 | 1269 |
| LMArena Chinese | 1124 | 1311 |
| LMArena German | 1125 | 1249 |
| LMArena Japanese | 1023 | 1245 |
| LMArena Russian | 1186 | 1279 |
| LMArena Spanish | 1118 | 1267 |
| LMArena French | 1144 | — |
| LMArena Korean | — | 1239 |

## Instruction Following

- Gemini 1.0 Pro: 57.9 (#262)
- gpt-oss-20b: 62.0 (#235)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Instruction Following | 1114 | 1236 |
| IFEval | — | 73.2% |

## Long Context

- Gemini 1.0 Pro: 34.3 (#244)
- gpt-oss-20b: 37.9 (#203)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Longer Query | 1132 | 1251 |

## Writing & Preference

- Gemini 1.0 Pro: 36.2 (#259)
- gpt-oss-20b: 35.8 (#260)

| Benchmark | Gemini 1.0 Pro | gpt-oss-20b |
|---|---|---|
| LMArena Text | 1149 | 1288 |
| LMArena Creative Writing | 1130 | 1201 |
| LMArena Multi-Turn | 1139 | 1268 |
| EQ-Bench Creative Writing | — | 666 |
| WildBench | — | 73.7% |

## FAQ

### Is Gemini 1.0 Pro better than gpt-oss-20b?

gpt-oss-20b is the stronger model overall, scoring 32.1 to 27.1 on the Noometry Index.

### Is Gemini 1.0 Pro or gpt-oss-20b better for coding?

gpt-oss-20b scores higher on coding benchmarks: 37.1 versus 31.6 in the Noometry coding category.

### How many benchmarks do Gemini 1.0 Pro and gpt-oss-20b share?

19 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and gpt-oss-20b has 34.