# Nova 2.0 Pro Preview vs Yi-1.5-34B

> Nova 2.0 Pro Preview is the stronger model overall, scoring 32.8 to 30.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nova-2-0-pro-preview-vs-yi-1-5-34b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Nova 2.0 Pro Preview leads 40.2 to 31.9.
- Yi-1.5-34B has downloadable open weights; the other is API-only.

## Snapshot

| | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| Provider | Amazon | 01.AI |
| Noometry Index | 32.8 | 30.2 |
| Rank | 241 | 286 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Nova 2.0 Pro Preview: 40.2 (#130)
- Yi-1.5-34B: 31.9 (#267)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| SciCode | 42.7% | — |
| BigCodeBench Instruct | — | 33.9% |
| LMArena Coding | — | 1169 |
| BigCodeBench Complete | — | 43.8% |

## Agentic & Tool Use

- Nova 2.0 Pro Preview: 21.9 (#127)
- Yi-1.5-34B: —

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| GDP.pdf | 2% | — |

## Reasoning

- Nova 2.0 Pro Preview: 21.7 (#189)
- Yi-1.5-34B: 21.5 (#195)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1160 |

## Math

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 25.3 (#248)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| LMArena Math | — | 1182 |
| MATH Level 5 | — | 25.5% |

## Knowledge

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 14.8 (#290)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | — | 32% |
| LMArena Expert | — | 1144 |

## Multilingual

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 32.5 (#251)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | — | 1121 |
| LMArena Chinese | — | 1213 |
| LMArena French | — | 1155 |
| LMArena German | — | 1111 |
| LMArena Japanese | — | 1021 |
| LMArena Korean | — | 1005 |
| LMArena Russian | — | 1091 |
| LMArena Spanish | — | 1120 |

## Instruction Following

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 59.4 (#252)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | — | 1139 |

## Long Context

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 34.6 (#243)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | — | 1144 |

## Writing & Preference

- Nova 2.0 Pro Preview: —
- Yi-1.5-34B: 37.6 (#252)

| Benchmark | Nova 2.0 Pro Preview | Yi-1.5-34B |
|---|---|---|
| LMArena Text | — | 1173 |
| LMArena Creative Writing | — | 1135 |
| LMArena Multi-Turn | — | 1153 |

## FAQ

### Is Nova 2.0 Pro Preview better than Yi-1.5-34B?

Nova 2.0 Pro Preview is the stronger model overall, scoring 32.8 to 30.2 on the Noometry Index.

### Is Nova 2.0 Pro Preview or Yi-1.5-34B better for coding?

Nova 2.0 Pro Preview scores higher on coding benchmarks: 40.2 versus 31.9 in the Noometry coding category.

### How many benchmarks do Nova 2.0 Pro Preview and Yi-1.5-34B share?

0 benchmarks have published results for both models. Nova 2.0 Pro Preview has 3 scored results on Noometry and Yi-1.5-34B has 21.