# Chatgpt 4o Latest 20250326 vs GPT-5.4 Pro

> GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 43.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-gpt-5-4-pro
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 32.8.

## Snapshot

| | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.2 | 58.8 |
| Rank | 84 | 16 |
| Context | — | 1.05M |
| Input $/M | — | $30 |
| Output $/M | — | $180 |
| Weights | Proprietary | Proprietary |

## Coding

- Chatgpt 4o Latest 20250326: 41.0 (#122)
- GPT-5.4 Pro: 42.6 (#89)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
| LMArena Coding | 1413 | — |

## Reasoning

- Chatgpt 4o Latest 20250326: 32.8 (#64)
- GPT-5.4 Pro: 71.0 (#10)

| 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 | — | 159.12 |

## Math

- Chatgpt 4o Latest 20250326: 35.8 (#134)
- GPT-5.4 Pro: 72.0 (#17)

| 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

- Chatgpt 4o Latest 20250326: 38.7 (#131)
- GPT-5.4 Pro: 68.3 (#6)

| 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 | 1400 | — |

## Multimodal

- Chatgpt 4o Latest 20250326: 38.9 (#54)
- GPT-5.4 Pro: —

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Vision | 1243 | — |

## Multilingual

- Chatgpt 4o Latest 20250326: 53.1 (#72)
- GPT-5.4 Pro: —

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Non-English | 1419 | — |
| LMArena Chinese | 1456 | — |
| LMArena French | 1447 | — |
| LMArena German | 1424 | — |
| LMArena Japanese | 1406 | — |
| LMArena Korean | 1397 | — |
| LMArena Russian | 1429 | — |
| LMArena Spanish | 1435 | — |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.2 (#102)
- GPT-5.4 Pro: —

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Instruction Following | 1403 | — |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#104)
- GPT-5.4 Pro: —

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Longer Query | 1413 | — |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.8 (#68)
- GPT-5.4 Pro: —

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-5.4 Pro |
|---|---|---|
| LMArena Text | 1429 | — |
| LMArena Creative Writing | 1406 | — |
| EQ-Bench Creative Writing | 1501 | — |
| LMArena Multi-Turn | 1454 | — |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than GPT-5.4 Pro?

GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 43.2 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: 42.6 versus 41.0 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.