Model comparison
Chatgpt 4o Latest 20250326 vs GLM-4.6
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 41.4 on the Noometry Index.
Last verified . 19 shared benchmarks.
Summary
- They share 19 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 3 categories and GLM-4.6 in 5 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Chatgpt 4o Latest 20250326 leads 33.8 to 23.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 75% for Chatgpt 4o Latest 20250326 and 47.4% for GLM-4.6.
- GLM-4.6 has downloadable open weights; the other is API-only.
Side by side
| Chatgpt 4o Latest 20250326 | GLM-4.6 | |
|---|---|---|
| Provider | OpenAI | Z.ai (Zhipu) |
| Noometry Index | 43.8 | 41.4 |
| Released | — | 2025-09-30 |
| Weights | Proprietary | Open |
| Context window | — | 205K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.60 |
| Output $ / M tokens | — | $2.20 |
| Results tracked | 21 | 29 |
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Category by category
Coding Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 41.6 (#122), GLM-4.6: 40.1 (#148)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Coding | 1413 | 1449 |
| SWE-bench Verified (bash only) | — | 55.4% |
| LMArena WebDev | — | 1340 |
| SciCode | — | 38.4% |
| ALE-Bench | — | 340.82 |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, GLM-4.6: 32.3 (#66)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| Terminal-Bench | — | 24.5% |
| Berkeley Function Calling Leaderboard | — | 72.4% |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), GLM-4.6: 23.7 (#172)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| Kagi LLM Benchmark | 75% | 47.4% |
| LMArena Hard Prompts | 1424 | 1440 |
| CritPt | — | 1.1% |
Math Too close to call
Chatgpt 4o Latest 20250326: 38.6 (#134), GLM-4.6: 39.1 (#111)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Math | 1407 | 1432 |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Too close to call
Chatgpt 4o Latest 20250326: 39.2 (#137), GLM-4.6: 40.2 (#124)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Expert | 1401 | 1431 |
| Confabulations | 16.6% | — |
| Vectara Hallucination Rate | — | 9.5% |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 39.6 (#58), GLM-4.6: —
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Too close to call
Chatgpt 4o Latest 20250326: 52.9 (#76), GLM-4.6: 53.5 (#66)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Non-English | 1419 | 1426 |
| LMArena Chinese | 1457 | 1499 |
| LMArena French | 1446 | 1459 |
| LMArena German | 1423 | 1447 |
| LMArena Japanese | 1405 | 1393 |
| LMArena Korean | 1396 | 1400 |
| LMArena Russian | 1429 | 1419 |
| LMArena Spanish | 1434 | 1436 |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.0 (#107), GLM-4.6: 74.3 (#98)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1410 |
Long Context Too close to call
Chatgpt 4o Latest 20250326: 43.1 (#107), GLM-4.6: 43.4 (#94)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Longer Query | 1413 | 1422 |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), GLM-4.6: 61.1 (#90)
| Benchmark | Chatgpt 4o Latest 20250326 | GLM-4.6 |
|---|---|---|
| LMArena Text | 1429 | 1440 |
| LMArena Creative Writing | 1405 | 1411 |
| EQ-Bench Creative Writing | 1501 | 1411 |
| LMArena Multi-Turn | 1454 | 1427 |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than GLM-4.6?
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 41.4 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or GLM-4.6 better for coding?
Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.6 versus 40.1 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and GLM-4.6 share?
19 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GLM-4.6 has 29.