# GLM-4.5 vs GPT-5.4 nano

> GLM-4.5 and GPT-5.4 nano score almost the same on the Noometry Index (42.0 vs 41.9), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-gpt-5-4-nano
- Last updated: 2026-10-12
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. GLM-4.5 scores higher in 4 categories and GPT-5.4 nano in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.4 nano leads 41.9 to 35.9.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 57.9% for GLM-4.5 and 39.7% for GPT-5.4 nano.
- GPT-5.4 nano is cheaper at $0.20 / $1.25 per million input/output tokens, against $0.60 / $2.20 for GLM-4.5.
- GPT-5.4 nano accepts more context: 400K tokens versus 131K.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| Provider | Z.ai (Zhipu) | OpenAI |
| Noometry Index | 42.0 | 41.9 |
| Rank | 122 | 125 |
| Context | 131K | 400K |
| Input $/M | $0.60 | $0.20 |
| Output $/M | $2.20 | $1.25 |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5: 41.4 (#125)
- GPT-5.4 nano: 43.6 (#84)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| WeirdML | 40.6% | 49.2% |
| LMArena Coding | 1434 | 1405 |
| ALE-Bench | 344.82 | 1,005 |
| SWE-bench Verified (bash only) | 54.2% | — |
| SciCode | — | 46.9% |
| AlgoTune | 1.52 | — |

## Reasoning

- GLM-4.5: 28.6 (#100)
- GPT-5.4 nano: 23.7 (#173)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| Kagi LLM Benchmark | 57.9% | 39.7% |
| LMArena Hard Prompts | 1429 | 1381 |
| ARC-AGI-2 | — | 5.7% |
| ARC-AGI-1 | — | 51.5% |
| CritPt | — | 9.3% |
| Chess Puzzles | — | 30% |
| Mystery Game Puzzles | — | 9% |
| DTBench | — | 80.3% |
| LMCA | — | 36.9% |
| Epoch Capabilities Index | — | 145.81 |
| ForecastBench | — | 57.3 |

## Math

- GLM-4.5: 39.0 (#116)
- GPT-5.4 nano: 40.9 (#88)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Math | 1427 | 1406 |
| FrontierMath (Tiers 1-3) | — | 44.9% |
| FrontierMath Tier 4 | — | 12.2% |
| OTIS Mock AIME 2024-2025 | — | 87.8% |
| ProofBench | — | 5% |
| FrontierMath (Feb 2025 set) | — | 25.9% |
| FrontierMath Tier 4 (v1) | — | 6.3% |

## Knowledge

- GLM-4.5: 35.9 (#179)
- GPT-5.4 nano: 41.9 (#103)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Expert | 1433 | 1396 |
| GPQA Diamond | — | 78.5% |
| Humanity's Last Exam | 8.3% | — |
| SimpleQA Verified | — | 11.7% |
| Confabulations | 11.3% | — |
| Vectara Hallucination Rate | — | 3.1% |

## Multimodal

- GLM-4.5: —
- GPT-5.4 nano: 36.7 (#78)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Vision | — | 1196 |

## Multilingual

- GLM-4.5: 52.8 (#77)
- GPT-5.4 nano: 48.6 (#140)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Non-English | 1417 | 1359 |
| LMArena Chinese | 1465 | 1392 |
| LMArena French | 1418 | 1396 |
| LMArena German | 1407 | 1367 |
| LMArena Japanese | 1415 | 1343 |
| LMArena Korean | 1380 | 1320 |
| LMArena Russian | 1414 | 1363 |
| LMArena Spanish | 1454 | 1371 |

## Instruction Following

- GLM-4.5: 74.1 (#104)
- GPT-5.4 nano: 71.9 (#144)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Instruction Following | 1404 | 1362 |

## Long Context

- GLM-4.5: 38.2 (#201)
- GPT-5.4 nano: 41.6 (#137)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Longer Query | 1412 | 1366 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- GLM-4.5: 57.5 (#127)
- GPT-5.4 nano: 55.7 (#142)

| Benchmark | GLM-4.5 | GPT-5.4 nano |
|---|---|---|
| LMArena Text | 1430 | 1372 |
| LMArena Creative Writing | 1395 | 1314 |
| LMArena Multi-Turn | 1415 | 1382 |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |

## FAQ

### Is GLM-4.5 better than GPT-5.4 nano?

GLM-4.5 and GPT-5.4 nano score almost the same on the Noometry Index (42.0 vs 41.9), so choose on price, context window or the category you care about most.

### Which is cheaper, GLM-4.5 or GPT-5.4 nano?

GPT-5.4 nano is cheaper. It lists at $0.20 per million input tokens and $1.25 per million output tokens; GLM-4.5 lists at $0.60 and $2.20.

### Is GLM-4.5 or GPT-5.4 nano better for coding?

GPT-5.4 nano scores higher on coding benchmarks: 43.6 versus 41.4 in the Noometry coding category.

### Which has the bigger context window?

GPT-5.4 nano does, with 400K tokens against 131K.

### How many benchmarks do GLM-4.5 and GPT-5.4 nano share?

20 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and GPT-5.4 nano has 40.