# Amazon Nova Experimental Chat 10 20 vs GLM-5.3-Flash

> GLM-5.3-Flash is the stronger model overall, scoring 49.6 to 41.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-glm-5-3-flash
- 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 0 categories and GLM-5.3-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GLM-5.3-Flash leads 58.4 to 37.8.
- GLM-5.3-Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| Provider | Amazon | Z.ai (Zhipu) |
| Noometry Index | 41.5 | 49.6 |
| Rank | 122 | 45 |
| Context | — | 1M |
| Input $/M | — | $0.15 |
| Output $/M | — | $0.50 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.0 (#123)
- GLM-5.3-Flash: 53.7 (#26)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Coding | 1413 | 1506 |
| DeepSWE | — | 63.4% |
| FrontierCode | — | 31.8% |
| LMArena WebDev | — | 1614 |
| SciCode | — | 51.6% |
| ALE-Bench | — | 303.55 |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 10 20: —
- GLM-5.3-Flash: 34.3 (#41)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| APEX-Agents | — | 52.8% |
| GDP.pdf | — | 14% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 27.3 (#110)
- GLM-5.3-Flash: 31.7 (#69)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1490 |
| CritPt | — | 15.4% |
| Chess Puzzles | — | 14% |
| Mystery Game Puzzles | — | 8% |
| Surface Evolver Bench | — | 52.5% |
| Bench to the Future 3 | — | 0.15 |
| Epoch Capabilities Index | — | 151.9 |

## Math

- Amazon Nova Experimental Chat 10 20: 36.2 (#121)
- GLM-5.3-Flash: 53.1 (#38)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Math | 1425 | 1499 |
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 17.1% |
| OTIS Mock AIME 2024-2025 | — | 93.9% |
| ProofBench | — | 21% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 37.8 (#142)
- GLM-5.3-Flash: 58.4 (#33)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Expert | 1385 | 1512 |
| GPQA Diamond | — | 90.2% |

## Multimodal

- Amazon Nova Experimental Chat 10 20: —
- GLM-5.3-Flash: 42.6 (#25)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Vision | — | 1304 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.7 (#127)
- GLM-5.3-Flash: 56.2 (#24)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Non-English | 1372 | 1462 |
| LMArena Chinese | 1405 | 1529 |
| LMArena French | 1426 | 1495 |
| LMArena German | 1391 | 1457 |
| LMArena Japanese | 1355 | 1420 |
| LMArena Korean | 1327 | 1443 |
| LMArena Russian | 1371 | 1472 |
| LMArena Spanish | 1381 | 1471 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.3 (#136)
- GLM-5.3-Flash: 77.8 (#17)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Instruction Following | 1365 | 1480 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#128)
- GLM-5.3-Flash: 45.3 (#41)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Longer Query | 1370 | 1479 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.9 (#131)
- GLM-5.3-Flash: 65.4 (#49)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GLM-5.3-Flash |
|---|---|---|
| LMArena Text | 1394 | 1471 |
| LMArena Creative Writing | 1318 | 1440 |
| LMArena Multi-Turn | 1364 | 1471 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than GLM-5.3-Flash?

GLM-5.3-Flash is the stronger model overall, scoring 49.6 to 41.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or GLM-5.3-Flash better for coding?

GLM-5.3-Flash scores higher on coding benchmarks: 53.7 versus 41.0 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and GLM-5.3-Flash share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and GLM-5.3-Flash has 36.