Model comparison
Chatgpt 4o Latest 20250326 vs GPT-6 Luna
GPT-6 Luna is the stronger model overall, scoring 45.1 to 43.2 on the Noometry Index.
Last verified . 13 shared benchmarks.
Summary
- They share 13 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 4 categories and GPT-6 Luna in 5 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where GPT-6 Luna leads 54.7 to 41.0.
Side by side
| Chatgpt 4o Latest 20250326 | GPT-6 Luna | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.2 | 45.1 |
| Released | — | 2026-09-22 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.50 |
| Results tracked | 21 | 18 |
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Category by category
Coding GPT-6 Luna leads
Chatgpt 4o Latest 20250326: 41.0 (#122), GPT-6 Luna: 54.7 (#24)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Coding | 1413 | 1448 |
| DeepSWE | — | 66.6% |
| FrontierCode | — | 42.4% |
| LMArena WebDev | — | 1583 |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 32.8 (#64), GPT-6 Luna: 31.7 (#68)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1415 |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 68.7% |
Math Too close to call
Chatgpt 4o Latest 20250326: 35.8 (#134), GPT-6 Luna: 35.6 (#140)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Math | 1407 | 1396 |
Knowledge GPT-6 Luna leads
Chatgpt 4o Latest 20250326: 38.7 (#131), GPT-6 Luna: 40.1 (#110)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Expert | 1400 | 1458 |
| Confabulations | 16.6% | — |
Multimodal GPT-6 Luna leads
Chatgpt 4o Latest 20250326: 38.9 (#54), GPT-6 Luna: 42.0 (#27)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Vision | 1243 | — |
| Furniture Assembly | — | 44.2% |
Multilingual Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 53.1 (#72), GPT-6 Luna: 51.0 (#111)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Non-English | 1419 | 1390 |
| LMArena Chinese | 1456 | 1425 |
| LMArena Russian | 1429 | 1392 |
| LMArena Spanish | 1435 | 1416 |
| LMArena French | 1447 | — |
| LMArena German | 1424 | — |
| LMArena Japanese | 1406 | — |
| LMArena Korean | 1397 | — |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.2 (#102), GPT-6 Luna: 74.7 (#85)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Instruction Following | 1403 | 1414 |
Long Context Too close to call
Chatgpt 4o Latest 20250326: 43.1 (#104), GPT-6 Luna: 43.3 (#95)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Longer Query | 1413 | 1417 |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.8 (#68), GPT-6 Luna: 58.4 (#115)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6 Luna |
|---|---|---|
| LMArena Text | 1429 | 1392 |
| LMArena Creative Writing | 1406 | 1357 |
| LMArena Multi-Turn | 1454 | 1400 |
| EQ-Bench Creative Writing | 1501 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than GPT-6 Luna?
GPT-6 Luna is the stronger model overall, scoring 45.1 to 43.2 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or GPT-6 Luna better for coding?
GPT-6 Luna scores higher on coding benchmarks: 54.7 versus 41.0 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and GPT-6 Luna share?
13 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GPT-6 Luna has 18.