Model comparison
Chatgpt 4o Latest 20250326 vs GPT-4.5
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 37.2 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 8 categories and GPT-4.5 in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Chatgpt 4o Latest 20250326 leads 33.8 to 13.9.
Side by side
| Chatgpt 4o Latest 20250326 | GPT-4.5 | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.8 | 37.2 |
| Released | — | 2025-02-27 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 21 | 42 |
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Category by category
Coding Too close to call
Chatgpt 4o Latest 20250326: 41.6 (#122), GPT-4.5: 42.2 (#109)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Coding | 1413 | 1396 |
| Aider Polyglot | — | 44.9% |
| WeirdML | — | 39.4% |
| LiveBench Coding | — | 75.2% |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, GPT-4.5: 27.9 (#97)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| Cybench | — | 17.5% |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), GPT-4.5: 13.9 (#330)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1403 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 34.5% |
| Kagi LLM Benchmark | 75% | — |
| ARC-AGI-1 | — | 10.3% |
| EnigmaEval | — | 3.2% |
| LiveBench Reasoning | — | 71.1% |
| LiveBench Data Analysis | — | 64.3% |
| Epoch Capabilities Index | — | 136.74 |
| ForecastBench | — | 61.7 |
| LiveBench | — | 69% |
Math Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 38.6 (#134), GPT-4.5: 32.6 (#211)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Math | 1407 | 1412 |
| OTIS Mock AIME 2024-2025 | — | 37.8% |
| LiveBench Math | — | 69.3% |
| MATH Level 5 | — | 78.6% |
Knowledge Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), GPT-4.5: 32.5 (#211)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| Confabulations | 16.6% | 13.6% |
| LMArena Expert | 1401 | 1394 |
| GPQA Diamond | — | 68.7% |
| Humanity's Last Exam | — | 5.4% |
Multimodal Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 39.6 (#58), GPT-4.5: 37.6 (#71)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Vision | 1243 | 1195 |
| VPCT | — | 45% |
Multilingual Too close to call
Chatgpt 4o Latest 20250326: 52.9 (#76), GPT-4.5: 52.5 (#83)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Non-English | 1419 | 1413 |
| LMArena Chinese | 1457 | 1421 |
| LMArena French | 1446 | 1418 |
| LMArena German | 1423 | 1457 |
| LMArena Japanese | 1405 | 1416 |
| LMArena Korean | 1396 | 1392 |
| LMArena Russian | 1429 | 1419 |
| LMArena Spanish | 1434 | — |
Instruction Following Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 74.0 (#107), GPT-4.5: 72.6 (#134)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1404 |
| LiveBench Instruction Following | — | 72.3% |
Long Context Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 43.1 (#107), GPT-4.5: 40.4 (#155)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Longer Query | 1413 | 1406 |
| Fiction.LiveBench | — | 63.9% |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), GPT-4.5: 56.9 (#134)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-4.5 |
|---|---|---|
| LMArena Text | 1429 | 1417 |
| LMArena Creative Writing | 1405 | 1394 |
| EQ-Bench Creative Writing | 1501 | 1258 |
| LMArena Multi-Turn | 1454 | 1444 |
| Short-Story Creative Writing | — | 75.6% |
| LiveBench Language | — | 61.5% |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than GPT-4.5?
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 37.2 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or GPT-4.5 better for coding?
They score almost the same on coding (41.6 vs 42.2); test both on your own repository before choosing.
How many benchmarks do Chatgpt 4o Latest 20250326 and GPT-4.5 share?
19 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GPT-4.5 has 42.