# Devstral Small 2505 vs Yi-34B

> Devstral Small 2505 is the stronger model overall, scoring 33.9 to 27.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Devstral Small 2505 leads 38.6 to 31.8.

## Snapshot

| | Devstral Small 2505 | Yi-34B |
|---|---|---|
| Provider | Mistral AI | 01.AI |
| Noometry Index | 33.9 | 27.4 |
| Rank | 228 | 325 |
| Context | 128K | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.30 | — |
| Weights | Open | Open |

## Coding

- Devstral Small 2505: 38.6 (#160)
- Yi-34B: 31.8 (#269)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1112 |

## Reasoning

- Devstral Small 2505: 19.1 (#243)
- Yi-34B: 20.3 (#222)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.28 |

## Math

- Devstral Small 2505: —
- Yi-34B: 19.8 (#277)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- Devstral Small 2505: —
- Yi-34B: 7.5 (#304)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| MMLU | — | 76.3% |

## Multilingual

- Devstral Small 2505: —
- Yi-34B: 29.9 (#259)

| Benchmark | Devstral Small 2505 | 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

- Devstral Small 2505: —
- Yi-34B: 56.4 (#269)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Instruction Following | — | 1091 |

## Long Context

- Devstral Small 2505: —
- Yi-34B: 33.2 (#259)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Longer Query | — | 1094 |

## Writing & Preference

- Devstral Small 2505: —
- Yi-34B: 34.3 (#268)

| Benchmark | Devstral Small 2505 | Yi-34B |
|---|---|---|
| LMArena Text | — | 1129 |
| LMArena Creative Writing | — | 1108 |
| LMArena Multi-Turn | — | 1113 |

## FAQ

### Is Devstral Small 2505 better than Yi-34B?

Devstral Small 2505 is the stronger model overall, scoring 33.9 to 27.4 on the Noometry Index.

### Is Devstral Small 2505 or Yi-34B better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.6 versus 31.8 in the Noometry coding category.

### How many benchmarks do Devstral Small 2505 and Yi-34B share?

0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Yi-34B has 23.