# GLM-4.5 vs Kimi K2.5 Instant

> Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 42.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-kimi-k2-5-instant
- Last updated: 2026-10-10
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. GLM-4.5 scores higher in 1 category and Kimi K2.5 Instant in 7 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in long context, where Kimi K2.5 Instant leads 43.9 to 38.2.

## Snapshot

| | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| Provider | Z.ai (Zhipu) | Moonshot AI |
| Noometry Index | 42.0 | 43.6 |
| Rank | 122 | 89 |
| Context | 131K | — |
| Input $/M | $0.60 | — |
| Output $/M | $2.20 | — |
| Weights | Open | Open |

## Coding

- GLM-4.5: 41.4 (#125)
- Kimi K2.5 Instant: 42.6 (#97)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Coding | 1434 | 1484 |
| SWE-bench Verified (bash only) | 54.2% | — |
| LMArena WebDev | — | 1404 |
| WeirdML | 40.6% | — |
| ALE-Bench | 344.82 | — |
| AlgoTune | 1.52 | — |

## Reasoning

- GLM-4.5: 28.6 (#100)
- Kimi K2.5 Instant: 29.7 (#90)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1429 | 1443 |
| Kagi LLM Benchmark | 57.9% | — |

## Math

- GLM-4.5: 39.0 (#116)
- Kimi K2.5 Instant: 39.4 (#105)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1427 | 1442 |

## Knowledge

- GLM-4.5: 35.9 (#179)
- Kimi K2.5 Instant: 40.2 (#123)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1433 | 1440 |
| Humanity's Last Exam | 8.3% | — |
| Confabulations | 11.3% | — |

## Multimodal

- GLM-4.5: —
- Kimi K2.5 Instant: 40.2 (#50)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |

## Multilingual

- GLM-4.5: 52.8 (#77)
- Kimi K2.5 Instant: 52.0 (#94)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1417 | 1406 |
| LMArena Chinese | 1465 | 1449 |
| LMArena French | 1418 | 1403 |
| LMArena German | 1407 | 1413 |
| LMArena Korean | 1380 | 1378 |
| LMArena Russian | 1414 | 1404 |
| LMArena Spanish | 1454 | 1447 |
| LMArena Japanese | 1415 | — |

## Instruction Following

- GLM-4.5: 74.1 (#104)
- Kimi K2.5 Instant: 75.3 (#65)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1404 | 1430 |

## Long Context

- GLM-4.5: 38.2 (#201)
- Kimi K2.5 Instant: 43.9 (#83)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1412 | 1435 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- GLM-4.5: 57.5 (#127)
- Kimi K2.5 Instant: 60.6 (#95)

| Benchmark | GLM-4.5 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1430 | 1420 |
| LMArena Creative Writing | 1395 | 1381 |
| LMArena Multi-Turn | 1415 | 1427 |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |

## FAQ

### Is GLM-4.5 better than Kimi K2.5 Instant?

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 42.0 on the Noometry Index.

### Is GLM-4.5 or Kimi K2.5 Instant better for coding?

Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 41.4 in the Noometry coding category.

### How many benchmarks do GLM-4.5 and Kimi K2.5 Instant share?

16 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and Kimi K2.5 Instant has 18.