# StarCoder 2 15B vs Yi-34B

> Yi-34B has enough public results to be ranked (#325); StarCoder 2 15B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/starcoder-2-15b-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. StarCoder 2 15B scores higher in 1 category and Yi-34B in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in coding, where StarCoder 2 15B leads 36.0 to 31.8.

## Snapshot

| | StarCoder 2 15B | Yi-34B |
|---|---|---|
| Provider | NVIDIA | 01.AI |
| Noometry Index | 37.5 | 27.4 |
| Rank | — | 325 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- StarCoder 2 15B: 36.0
- Yi-34B: 31.8 (#269)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| LMArena Coding | — | 1112 |
| BigCodeBench Complete | 38.4% | — |
| HumanEval+ | 37.8% | — |

## Reasoning

- StarCoder 2 15B: —
- Yi-34B: 20.3 (#222)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| Epoch Capabilities Index | 104.61 | 117.28 |
| LMArena Hard Prompts | — | 1104 |
| BIG-Bench Hard | — | 71.7% |
| WinoGrande | 64.3% | — |

## Math

- StarCoder 2 15B: —
- Yi-34B: 19.8 (#277)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| GSM8K | 57.7% | 76% |
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |

## Knowledge

- StarCoder 2 15B: —
- Yi-34B: 7.5 (#304)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| MMLU | 64.1% | 76.3% |
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| ARC (AI2) Challenge | 47.2% | — |

## Multilingual

- StarCoder 2 15B: —
- Yi-34B: 29.9 (#259)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| LMArena Non-English | — | 1079 |
| LMArena Chinese | — | 1175 |
| LMArena French | — | 1080 |
| LMArena German | — | 1042 |
| LMArena Japanese | — | 993 |
| LMArena Korean | — | 959 |
| LMArena Russian | — | 1050 |
| LMArena Spanish | — | 1070 |

## Instruction Following

- StarCoder 2 15B: —
- Yi-34B: 56.4 (#269)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| LMArena Instruction Following | — | 1091 |

## Long Context

- StarCoder 2 15B: —
- Yi-34B: 33.2 (#259)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| LMArena Longer Query | — | 1094 |

## Writing & Preference

- StarCoder 2 15B: —
- Yi-34B: 34.3 (#268)

| Benchmark | StarCoder 2 15B | Yi-34B |
|---|---|---|
| LMArena Text | — | 1129 |
| LMArena Creative Writing | — | 1108 |
| LMArena Multi-Turn | — | 1113 |

## FAQ

### Is StarCoder 2 15B better than Yi-34B?

Yi-34B has enough public results to be ranked (#325); StarCoder 2 15B does not yet, so treat this comparison as directional.

### Is StarCoder 2 15B or Yi-34B better for coding?

StarCoder 2 15B scores higher on coding benchmarks: 36.0 versus 31.8 in the Noometry coding category.

### How many benchmarks do StarCoder 2 15B and Yi-34B share?

3 benchmarks have published results for both models. StarCoder 2 15B has 7 scored results on Noometry and Yi-34B has 23.