# Chatgpt 4o Latest 20250326 vs Solar Pro4

> Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.2 to 41.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-solar-pro4
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 6 categories and Solar Pro4 in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Chatgpt 4o Latest 20250326 leads 62.8 to 56.7.

## Snapshot

| | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| Provider | OpenAI | Upstage |
| Noometry Index | 43.2 | 41.5 |
| Rank | 84 | 123 |
| Context | — | 524K |
| Input $/M | — | $0.30 |
| Output $/M | — | $1.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Chatgpt 4o Latest 20250326: 41.0 (#122)
- Solar Pro4: 39.9 (#135)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1413 | 1439 |
| LMArena WebDev | — | 1371 |

## Reasoning

- Chatgpt 4o Latest 20250326: 32.8 (#64)
- Solar Pro4: 27.3 (#107)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1398 |
| Kagi LLM Benchmark | 75% | — |

## Math

- Chatgpt 4o Latest 20250326: 35.8 (#134)
- Solar Pro4: 36.1 (#129)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Math | 1407 | 1418 |

## Knowledge

- Chatgpt 4o Latest 20250326: 38.7 (#131)
- Solar Pro4: 39.0 (#128)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1400 | 1421 |
| Confabulations | 16.6% | — |

## Multimodal

- Chatgpt 4o Latest 20250326: 38.9 (#54)
- Solar Pro4: —

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Vision | 1243 | — |

## Multilingual

- Chatgpt 4o Latest 20250326: 53.1 (#72)
- Solar Pro4: 49.0 (#134)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1419 | 1362 |
| LMArena Chinese | 1456 | 1417 |
| LMArena French | 1447 | 1403 |
| LMArena German | 1424 | 1351 |
| LMArena Japanese | 1406 | 1300 |
| LMArena Korean | 1397 | 1383 |
| LMArena Russian | 1429 | 1360 |
| LMArena Spanish | 1435 | 1408 |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.2 (#102)
- Solar Pro4: 72.8 (#128)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1376 |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#104)
- Solar Pro4: 42.0 (#125)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1413 | 1379 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.8 (#68)
- Solar Pro4: 56.7 (#133)

| Benchmark | Chatgpt 4o Latest 20250326 | Solar Pro4 |
|---|---|---|
| LMArena Text | 1429 | 1386 |
| LMArena Creative Writing | 1406 | 1313 |
| LMArena Multi-Turn | 1454 | 1391 |
| EQ-Bench Creative Writing | 1501 | — |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than Solar Pro4?

Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.2 to 41.5 on the Noometry Index.

### Is Chatgpt 4o Latest 20250326 or Solar Pro4 better for coding?

Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.0 versus 39.9 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and Solar Pro4 share?

17 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Solar Pro4 has 18.