# Amazon Nova Lite vs gpt-oss-20b

> Amazon Nova Lite and gpt-oss-20b score almost the same on the Noometry Index (31.9 vs 32.5), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/amazon-nova-lite-vs-gpt-oss-20b
- Last updated: 2026-10-11
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Amazon Nova Lite scores higher in 2 categories and gpt-oss-20b in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where gpt-oss-20b leads 39.4 to 27.8.
- The biggest single-benchmark swing is Omni-MATH: 23.3% for Amazon Nova Lite and 56.5% for gpt-oss-20b.
- gpt-oss-20b is cheaper at $0.018 / $0.09 per million input/output tokens, against $0.06 / $0.24 for Amazon Nova Lite.
- Amazon Nova Lite accepts more context: 300K tokens versus 131K.
- gpt-oss-20b has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 31.9 | 32.5 |
| Rank | 265 | 255 |
| Context | 300K | 131K |
| Input $/M | $0.06 | $0.018 |
| Output $/M | $0.24 | $0.09 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Lite: 32.5 (#270)
- gpt-oss-20b: 37.6 (#192)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Coding | 1239 | 1306 |
| ALE-Bench | 236.25 | 566.05 |
| SciCode | — | 34.4% |
| WeirdML | — | 40.9% |
| LiveBench Coding | 27.5% | — |

## Agentic & Tool Use

- Amazon Nova Lite: —
- gpt-oss-20b: 9.3 (#154)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| Terminal-Bench | — | 3.4% |

## Reasoning

- Amazon Nova Lite: 19.3 (#260)
- gpt-oss-20b: 19.3 (#261)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Hard Prompts | 1220 | 1274 |
| Kagi LLM Benchmark | — | 53.2% |
| CritPt | — | 1.4% |
| Chess Puzzles | — | 4% |
| LiveBench Reasoning | 36.7% | — |
| DTBench | — | 68% |
| LiveBench Data Analysis | 37.2% | — |
| LMCA | — | 14.5% |
| Epoch Capabilities Index | — | 137.82 |
| LiveBench | 36.4% | — |

## Math

- Amazon Nova Lite: 27.8 (#247)
- gpt-oss-20b: 39.4 (#103)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| Omni-MATH | 23.3% | 56.5% |
| LMArena Math | 1227 | 1317 |
| OTIS Mock AIME 2024-2025 | — | 65.3% |
| LiveBench Math | 36.7% | — |

## Knowledge

- Amazon Nova Lite: 26.3 (#259)
- gpt-oss-20b: 34.6 (#195)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| MMLU-Pro | 60% | 74% |
| GPQA (HELM) | 39.7% | 59.4% |
| LMArena Expert | 1201 | 1258 |
| GPQA Diamond | — | 60.8% |
| Humanity's Last Exam | 3.6% | — |
| Vectara Hallucination Rate | 6.1% | — |
| MMLU | 77% | — |

## Multimodal

- Amazon Nova Lite: 25.5 (#123)
- gpt-oss-20b: —

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Vision | 990 | — |

## Multilingual

- Amazon Nova Lite: 38.0 (#232)
- gpt-oss-20b: 42.2 (#197)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Non-English | 1208 | 1268 |
| LMArena Chinese | 1225 | 1314 |
| LMArena German | 1229 | 1255 |
| LMArena Japanese | 1153 | 1244 |
| LMArena Korean | 1153 | 1236 |
| LMArena Russian | 1216 | 1278 |
| LMArena Spanish | 1226 | 1267 |
| LMArena French | 1237 | — |

## Instruction Following

- Amazon Nova Lite: 59.3 (#255)
- gpt-oss-20b: 61.8 (#240)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| IFEval | 77.6% | 73.2% |
| LMArena Instruction Following | 1205 | 1236 |
| LiveBench Instruction Following | 54.1% | — |

## Long Context

- Amazon Nova Lite: 37.4 (#217)
- gpt-oss-20b: 37.9 (#209)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Longer Query | 1234 | 1250 |

## Writing & Preference

- Amazon Nova Lite: 42.1 (#237)
- gpt-oss-20b: 35.5 (#265)

| Benchmark | Amazon Nova Lite | gpt-oss-20b |
|---|---|---|
| LMArena Text | 1229 | 1287 |
| LMArena Creative Writing | 1197 | 1201 |
| WildBench | 75% | 73.7% |
| LMArena Multi-Turn | 1199 | 1268 |
| EQ-Bench Creative Writing | — | 666 |
| LiveBench Language | 25.9% | — |

## FAQ

### Is Amazon Nova Lite better than gpt-oss-20b?

Amazon Nova Lite and gpt-oss-20b score almost the same on the Noometry Index (31.9 vs 32.5), so choose on price, context window or the category you care about most.

### Which is cheaper, Amazon Nova Lite or gpt-oss-20b?

gpt-oss-20b is cheaper. It lists at $0.018 per million input tokens and $0.09 per million output tokens; Amazon Nova Lite lists at $0.06 and $0.24.

### Is Amazon Nova Lite or gpt-oss-20b better for coding?

gpt-oss-20b scores higher on coding benchmarks: 37.6 versus 32.5 in the Noometry coding category.

### Which has the bigger context window?

Amazon Nova Lite does, with 300K tokens against 131K.

### How many benchmarks do Amazon Nova Lite and gpt-oss-20b share?

22 benchmarks have published results for both models. Amazon Nova Lite has 34 scored results on Noometry and gpt-oss-20b has 34.