Model comparison
Chatgpt 4o Latest 20250326 vs GPT-5.4 Pro
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 43.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where GPT-5.4 Pro leads 70.7 to 33.8.
Side by side
| Chatgpt 4o Latest 20250326 | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.8 | 58.9 |
| Released | — | 2026-03-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 21 | 16 |
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Category by category
Coding GPT-5.4 Pro leads
Chatgpt 4o Latest 20250326: 41.6 (#122), GPT-5.4 Pro: 43.2 (#90)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
| LMArena Coding | 1413 | — |
Reasoning GPT-5.4 Pro leads
Chatgpt 4o Latest 20250326: 33.8 (#71), GPT-5.4 Pro: 70.7 (#13)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| ARC-AGI-2 | — | 83.3% |
| SimpleBench | — | 74.1% |
| Kagi LLM Benchmark | 75% | — |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
| LMArena Hard Prompts | 1424 | — |
| Epoch Capabilities Index | — | 158.93 |
Math GPT-5.4 Pro leads
Chatgpt 4o Latest 20250326: 38.6 (#134), GPT-5.4 Pro: 72.4 (#22)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| LMArena Math | 1407 | — |
| FrontierMath (Feb 2025 set) | — | 50% |
| FrontierMath Tier 4 (v1) | — | 37.5% |
Knowledge GPT-5.4 Pro leads
Chatgpt 4o Latest 20250326: 39.2 (#137), GPT-5.4 Pro: 68.3 (#7)
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | — | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Confabulations | 16.6% | — |
| Vectara Hallucination Rate | — | 8.3% |
| LMArena Expert | 1401 | — |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 39.6 (#58), GPT-5.4 Pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Not comparable
Chatgpt 4o Latest 20250326: 52.9 (#76), GPT-5.4 Pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Non-English | 1419 | — |
| LMArena Chinese | 1457 | — |
| LMArena French | 1446 | — |
| LMArena German | 1423 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1396 | — |
| LMArena Russian | 1429 | — |
| LMArena Spanish | 1434 | — |
Instruction Following Not comparable
Chatgpt 4o Latest 20250326: 74.0 (#107), GPT-5.4 Pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Instruction Following | 1403 | — |
Long Context Not comparable
Chatgpt 4o Latest 20250326: 43.1 (#107), GPT-5.4 Pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Longer Query | 1413 | — |
Writing & Preference Not comparable
Chatgpt 4o Latest 20250326: 62.6 (#72), GPT-5.4 Pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Text | 1429 | — |
| LMArena Creative Writing | 1405 | — |
| EQ-Bench Creative Writing | 1501 | — |
| LMArena Multi-Turn | 1454 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than GPT-5.4 Pro?
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 43.8 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or GPT-5.4 Pro better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 43.2 versus 41.6 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and GPT-5.4 Pro share?
0 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GPT-5.4 Pro has 16.