# Llama2 70b Steerlm Chat vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 36.5 to 31.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/llama2-70b-steerlm-chat-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. Llama2 70b Steerlm Chat scores higher in 1 category and Yi-Lightning in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Yi-Lightning leads 50.4 to 31.8.
- Llama2 70b Steerlm Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| Provider | NVIDIA | 01.AI |
| Noometry Index | 31.2 | 36.5 |
| Rank | 265 | 206 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Llama2 70b Steerlm Chat: 29.3 (#295)
- Yi-Lightning: 27.0 (#315)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1025 | 1313 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- Llama2 70b Steerlm Chat: 19.1 (#245)
- Yi-Lightning: 24.9 (#137)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1047 | 1302 |

## Math

- Llama2 70b Steerlm Chat: 28.8 (#223)
- Yi-Lightning: 33.5 (#173)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Math | 1072 | 1300 |

## Knowledge

- Llama2 70b Steerlm Chat: —
- Yi-Lightning: 34.8 (#182)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Expert | — | 1286 |

## Multilingual

- Llama2 70b Steerlm Chat: 28.9 (#265)
- Yi-Lightning: 42.4 (#191)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1064 | 1269 |
| LMArena Chinese | — | 1320 |
| LMArena French | — | 1304 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
| LMArena Russian | — | 1255 |
| LMArena Spanish | — | 1315 |

## Instruction Following

- Llama2 70b Steerlm Chat: 54.5 (#274)
- Yi-Lightning: 67.6 (#191)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1061 | 1278 |

## Long Context

- Llama2 70b Steerlm Chat: 30.4 (#283)
- Yi-Lightning: 39.4 (#176)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 998 | 1297 |

## Writing & Preference

- Llama2 70b Steerlm Chat: 31.8 (#278)
- Yi-Lightning: 50.4 (#178)

| Benchmark | Llama2 70b Steerlm Chat | Yi-Lightning |
|---|---|---|
| LMArena Text | 1098 | 1302 |
| LMArena Creative Writing | 1091 | 1280 |
| LMArena Multi-Turn | 1058 | 1311 |

## FAQ

### Is Llama2 70b Steerlm Chat better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 36.5 to 31.2 on the Noometry Index.

### Is Llama2 70b Steerlm Chat or Yi-Lightning better for coding?

Llama2 70b Steerlm Chat scores higher on coding benchmarks: 29.3 versus 27.0 in the Noometry coding category.

### How many benchmarks do Llama2 70b Steerlm Chat and Yi-Lightning share?

9 benchmarks have published results for both models. Llama2 70b Steerlm Chat has 9 scored results on Noometry and Yi-Lightning has 18.