Model comparison
Chatgpt 4o Latest 20250326 vs GLM-5.3
GLM-5.3 is the stronger model overall, scoring 54.8 to 43.8 on the Noometry Index.
Last verified . 18 shared benchmarks.
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 62.3 to 38.6.
- GLM-5.3 has downloadable open weights; the other is API-only.
Side by side
| Chatgpt 4o Latest 20250326 | GLM-5.3 | |
|---|---|---|
| Provider | OpenAI | Z.ai (Zhipu) |
| Noometry Index | 43.8 | 54.8 |
| Released | — | 2026-08-14 |
| Weights | Proprietary | Open |
| Context window | — | 1M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.40 |
| Output $ / M tokens | — | $4.40 |
| Results tracked | 21 | 42 |
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Category by category
Coding GLM-5.3 leads
Chatgpt 4o Latest 20250326: 41.6 (#122), GLM-5.3: 59.5 (#14)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Coding | 1413 | 1496 |
| DeepSWE | — | 69% |
| FrontierCode | — | 40.1% |
| CursorBench | — | 42.6% |
| LMArena WebDev | — | 1622 |
| FrontierSWE | — | 30.2% |
| SciCode | — | 59% |
| WeirdML | — | 75.4% |
| ALE-Bench | — | 1,317 |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, GLM-5.3: 36.4 (#38)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| APEX-Agents | — | 56.6% |
| Vending-Bench 2 | — | 8,164 |
Reasoning GLM-5.3 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), GLM-5.3: 46.1 (#46)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1489 |
| 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 | — | 155.61 |
Math GLM-5.3 leads
Chatgpt 4o Latest 20250326: 38.6 (#134), GLM-5.3: 62.3 (#33)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Math | 1407 | 1489 |
| FrontierMath (Tiers 1-3) | — | 68.8% |
| FrontierMath Tier 4 | — | 29.3% |
| OTIS Mock AIME 2024-2025 | — | 91.1% |
| ProofBench | — | 49% |
Knowledge GLM-5.3 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), GLM-5.3: 58.3 (#37)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Expert | 1401 | 1516 |
| GPQA Diamond | — | 90.9% |
| SimpleQA Verified | — | 41% |
| Confabulations | 16.6% | — |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 39.6 (#58), GLM-5.3: —
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual GLM-5.3 leads
Chatgpt 4o Latest 20250326: 52.9 (#76), GLM-5.3: 55.7 (#28)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Non-English | 1419 | 1457 |
| LMArena Chinese | 1457 | 1528 |
| LMArena French | 1446 | 1499 |
| LMArena German | 1423 | 1499 |
| LMArena Japanese | 1405 | 1453 |
| LMArena Korean | 1396 | 1472 |
| LMArena Russian | 1429 | 1463 |
| LMArena Spanish | 1434 | 1460 |
Instruction Following GLM-5.3 leads
Chatgpt 4o Latest 20250326: 74.0 (#107), GLM-5.3: 77.5 (#23)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1477 |
Long Context GLM-5.3 leads
Chatgpt 4o Latest 20250326: 43.1 (#107), GLM-5.3: 45.4 (#41)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Longer Query | 1413 | 1482 |
Writing & Preference GLM-5.3 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), GLM-5.3: 75.7 (#6)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-5.3 |
|---|---|---|
| LMArena Text | 1429 | 1471 |
| LMArena Creative Writing | 1405 | 1457 |
| EQ-Bench Creative Writing | 1501 | 2075 |
| LMArena Multi-Turn | 1454 | 1472 |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than GLM-5.3?
GLM-5.3 is the stronger model overall, scoring 54.8 to 43.8 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or GLM-5.3 better for coding?
GLM-5.3 scores higher on coding benchmarks: 59.5 versus 41.6 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 42.