# Chatgpt 4o Latest 20250326 vs GLM-5.3

> GLM-5.3 is the stronger model overall, scoring 54.6 to 43.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-glm-5-3
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 0 categories and GLM-5.3 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GLM-5.3 leads 62.1 to 35.8.
- GLM-5.3 has downloadable open weights; the other is API-only.

## Snapshot

| | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| Provider | OpenAI | Z.ai (Zhipu) |
| Noometry Index | 43.2 | 54.6 |
| Rank | 84 | 25 |
| Context | — | 1M |
| Input $/M | — | $1.40 |
| Output $/M | — | $4.40 |
| Weights | Proprietary | Open |

## Coding

- Chatgpt 4o Latest 20250326: 41.0 (#122)
- GLM-5.3: 59.0 (#12)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Coding | 1413 | 1499 |
| DeepSWE | — | 69% |
| FrontierCode | — | 40.1% |
| LMArena WebDev | — | 1623 |
| FrontierSWE | — | 30.2% |
| SciCode | — | 59% |
| WeirdML | — | 75.4% |
| ALE-Bench | — | 1,317 |

## Agentic & Tool Use

- Chatgpt 4o Latest 20250326: —
- GLM-5.3: 36.3 (#34)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| APEX-Agents | — | 56.6% |
| Vending-Bench 2 | — | 8,164 |

## Reasoning

- Chatgpt 4o Latest 20250326: 32.8 (#64)
- GLM-5.3: 45.2 (#42)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1491 |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 74.2% |
| CritPt | — | 19.1% |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 33% |
| DTBench | — | 87.7% |
| LMCA | — | 55.5% |
| Bench to the Future 3 | — | 0.15 |
| Epoch Capabilities Index | — | 155.56 |

## Math

- Chatgpt 4o Latest 20250326: 35.8 (#134)
- GLM-5.3: 62.1 (#27)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Math | 1407 | 1493 |
| FrontierMath (Tiers 1-3) | — | 68.8% |
| FrontierMath Tier 4 | — | 29.3% |
| OTIS Mock AIME 2024-2025 | — | 91.1% |
| ProofBench | — | 49% |

## Knowledge

- Chatgpt 4o Latest 20250326: 38.7 (#131)
- GLM-5.3: 58.3 (#34)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Expert | 1400 | 1512 |
| GPQA Diamond | — | 90.9% |
| SimpleQA Verified | — | 41% |
| Confabulations | 16.6% | — |

## Multimodal

- Chatgpt 4o Latest 20250326: 38.9 (#54)
- GLM-5.3: —

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Vision | 1243 | — |

## Multilingual

- Chatgpt 4o Latest 20250326: 53.1 (#72)
- GLM-5.3: 55.9 (#27)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Non-English | 1419 | 1457 |
| LMArena Chinese | 1456 | 1523 |
| LMArena French | 1447 | 1499 |
| LMArena German | 1424 | 1505 |
| LMArena Japanese | 1406 | 1438 |
| LMArena Korean | 1397 | 1478 |
| LMArena Russian | 1429 | 1460 |
| LMArena Spanish | 1435 | 1444 |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.2 (#102)
- GLM-5.3: 77.8 (#15)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1481 |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#104)
- GLM-5.3: 45.5 (#32)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Longer Query | 1413 | 1485 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.8 (#68)
- GLM-5.3: 75.9 (#6)

| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Text | 1429 | 1473 |
| LMArena Creative Writing | 1406 | 1459 |
| EQ-Bench Creative Writing | 1501 | 2075 |
| LMArena Multi-Turn | 1454 | 1473 |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than GLM-5.3?

GLM-5.3 is the stronger model overall, scoring 54.6 to 43.2 on the Noometry Index.

### Is Chatgpt 4o Latest 20250326 or GLM-5.3 better for coding?

GLM-5.3 scores higher on coding benchmarks: 59.0 versus 41.0 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and GLM-5.3 share?

18 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GLM-5.3 has 41.