# Kimi K2.5 Instant vs Yi-34B

> Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 27.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/kimi-k2-5-instant-vs-yi-34b
- Last updated: 2026-10-12
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 8 categories and Yi-34B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2.5 Instant leads 40.2 to 7.5.

## Snapshot

| | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| Provider | Moonshot AI | 01.AI |
| Noometry Index | 43.6 | 27.8 |
| Rank | 89 | 329 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Kimi K2.5 Instant: 42.6 (#97)
- Yi-34B: 32.3 (#274)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Coding | 1484 | 1112 |
| LMArena WebDev | 1404 | — |

## Reasoning

- Kimi K2.5 Instant: 29.7 (#90)
- Yi-34B: 21.2 (#226)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.39 |

## Math

- Kimi K2.5 Instant: 39.4 (#105)
- Yi-34B: 21.6 (#282)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Math | 1442 | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- Kimi K2.5 Instant: 40.2 (#123)
- Yi-34B: 7.5 (#309)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Expert | 1440 | 1061 |
| GPQA Diamond | — | 14.7% |
| MMLU | — | 76.3% |

## Multimodal

- Kimi K2.5 Instant: 40.2 (#50)
- Yi-34B: —

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Vision | 1254 | — |

## Multilingual

- Kimi K2.5 Instant: 52.0 (#94)
- Yi-34B: 29.7 (#264)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Non-English | 1406 | 1079 |
| LMArena Chinese | 1449 | 1176 |
| LMArena French | 1403 | 1081 |
| LMArena German | 1413 | 1042 |
| LMArena Korean | 1378 | 959 |
| LMArena Russian | 1404 | 1050 |
| LMArena Spanish | 1447 | 1070 |
| LMArena Japanese | — | 993 |

## Instruction Following

- Kimi K2.5 Instant: 75.3 (#65)
- Yi-34B: 56.2 (#274)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1430 | 1091 |

## Long Context

- Kimi K2.5 Instant: 43.9 (#83)
- Yi-34B: 33.2 (#264)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1435 | 1094 |

## Writing & Preference

- Kimi K2.5 Instant: 60.6 (#95)
- Yi-34B: 34.1 (#273)

| Benchmark | Kimi K2.5 Instant | Yi-34B |
|---|---|---|
| LMArena Text | 1420 | 1129 |
| LMArena Creative Writing | 1381 | 1108 |
| LMArena Multi-Turn | 1427 | 1113 |

## FAQ

### Is Kimi K2.5 Instant better than Yi-34B?

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 27.8 on the Noometry Index.

### Is Kimi K2.5 Instant or Yi-34B better for coding?

Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 32.3 in the Noometry coding category.

### How many benchmarks do Kimi K2.5 Instant and Yi-34B share?

16 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Yi-34B has 23.