# Chatgpt 4o Latest 20250326 vs Qwen3.5-Flash

> Chatgpt 4o Latest 20250326 and Qwen3.5-Flash score almost the same on the Noometry Index (43.2 vs 42.3), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-qwen3-5-flash
- 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 5 categories and Qwen3.5-Flash in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in coding, where Chatgpt 4o Latest 20250326 leads 41.0 to 33.9.

## Snapshot

| | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 43.2 | 42.3 |
| Rank | 84 | 105 |
| Context | — | 1M |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Chatgpt 4o Latest 20250326: 41.0 (#122)
- Qwen3.5-Flash: 33.9 (#234)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Coding | 1413 | 1412 |
| LMArena WebDev | — | 1243 |
| ALE-Bench | — | 221.8 |

## Agentic & Tool Use

- Chatgpt 4o Latest 20250326: —
- Qwen3.5-Flash: —

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| Vending-Bench 2 | — | 462.69 |

## Reasoning

- Chatgpt 4o Latest 20250326: 32.8 (#64)
- Qwen3.5-Flash: 32.9 (#63)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1404 |
| Kagi LLM Benchmark | 75% | — |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 82.9% |
| LMCA | — | 29.1% |
| Epoch Capabilities Index | — | 143.98 |

## Math

- Chatgpt 4o Latest 20250326: 35.8 (#134)
- Qwen3.5-Flash: 36.3 (#117)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Math | 1407 | 1407 |
| FrontierMath (Tiers 1-3) | — | 18.2% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 6.2% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- Chatgpt 4o Latest 20250326: 38.7 (#131)
- Qwen3.5-Flash: 43.2 (#84)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Expert | 1400 | 1408 |
| GPQA Diamond | — | 82.3% |
| SimpleQA Verified | — | 20.3% |
| Confabulations | 16.6% | — |
| Vectara Hallucination Rate | — | 10.5% |

## Multimodal

- Chatgpt 4o Latest 20250326: 38.9 (#54)
- Qwen3.5-Flash: —

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Vision | 1243 | — |

## Multilingual

- Chatgpt 4o Latest 20250326: 53.1 (#72)
- Qwen3.5-Flash: 50.7 (#116)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1419 | 1385 |
| LMArena Chinese | 1456 | 1446 |
| LMArena French | 1447 | 1412 |
| LMArena German | 1424 | 1389 |
| LMArena Japanese | 1406 | 1369 |
| LMArena Korean | 1397 | 1344 |
| LMArena Russian | 1429 | 1379 |
| LMArena Spanish | 1435 | 1399 |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.2 (#102)
- Qwen3.5-Flash: 72.8 (#133)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1403 | 1374 |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#104)
- Qwen3.5-Flash: 42.4 (#119)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1413 | 1392 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.8 (#68)
- Qwen3.5-Flash: 58.2 (#117)

| Benchmark | Chatgpt 4o Latest 20250326 | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1429 | 1397 |
| LMArena Creative Writing | 1406 | 1343 |
| LMArena Multi-Turn | 1454 | 1393 |
| EQ-Bench Creative Writing | 1501 | — |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than Qwen3.5-Flash?

Chatgpt 4o Latest 20250326 and Qwen3.5-Flash score almost the same on the Noometry Index (43.2 vs 42.3), so choose on price, context window or the category you care about most.

### Is Chatgpt 4o Latest 20250326 or Qwen3.5-Flash better for coding?

Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.0 versus 33.9 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and Qwen3.5-Flash share?

17 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Qwen3.5-Flash has 32.