# Amazon Nova Experimental Chat 10 20 vs GLM-4.5

> Amazon Nova Experimental Chat 10 20 and GLM-4.5 score almost the same on the Noometry Index (41.5 vs 41.4), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-glm-4-5
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 2 categories and GLM-4.5 in 6 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in long context, where Amazon Nova Experimental Chat 10 20 leads 41.7 to 38.2.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| Provider | Amazon | Z.ai (Zhipu) |
| Noometry Index | 41.5 | 41.4 |
| Rank | 122 | 125 |
| Context | — | 131K |
| Input $/M | — | $0.60 |
| Output $/M | — | $2.20 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.0 (#123)
- GLM-4.5: 41.1 (#121)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Coding | 1413 | 1434 |
| SWE-bench Verified (bash only) | — | 54.2% |
| WeirdML | — | 40.6% |
| ALE-Bench | — | 344.82 |
| AlgoTune | — | 1.52 |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 27.3 (#110)
- GLM-4.5: 27.7 (#99)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1430 |
| Kagi LLM Benchmark | — | 57.9% |

## Math

- Amazon Nova Experimental Chat 10 20: 36.2 (#121)
- GLM-4.5: 36.3 (#119)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Math | 1425 | 1427 |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 37.8 (#142)
- GLM-4.5: 35.5 (#172)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Expert | 1385 | 1433 |
| Humanity's Last Exam | — | 8.3% |
| Confabulations | — | 11.3% |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.7 (#127)
- GLM-4.5: 53.0 (#74)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Non-English | 1372 | 1417 |
| LMArena Chinese | 1405 | 1465 |
| LMArena French | 1426 | 1423 |
| LMArena German | 1391 | 1406 |
| LMArena Japanese | 1355 | 1416 |
| LMArena Korean | 1327 | 1382 |
| LMArena Russian | 1371 | 1414 |
| LMArena Spanish | 1381 | 1454 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.3 (#136)
- GLM-4.5: 74.3 (#100)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Instruction Following | 1365 | 1405 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#128)
- GLM-4.5: 38.2 (#196)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Longer Query | 1370 | 1413 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.9 (#131)
- GLM-4.5: 57.7 (#121)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-4.5 |
|---|---|---|
| LMArena Text | 1394 | 1430 |
| LMArena Creative Writing | 1318 | 1395 |
| LMArena Multi-Turn | 1364 | 1415 |
| Short-Story Creative Writing | — | 73.4% |
| EQ-Bench Creative Writing | — | 1343 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than GLM-4.5?

Amazon Nova Experimental Chat 10 20 and GLM-4.5 score almost the same on the Noometry Index (41.5 vs 41.4), so choose on price, context window or the category you care about most.

### Is Amazon Nova Experimental Chat 10 20 or GLM-4.5 better for coding?

They score almost the same on coding (41.0 vs 41.1); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and GLM-4.5 share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and GLM-4.5 has 27.