# GPT-5.4 mini vs Qwen3.5 Plus

> GPT-5.4 mini is the stronger model overall, scoring 44.8 to 42.3 on the Noometry Index. Qwen3.5 Plus costs 1.9× less per token, which makes it the better buy when GPT-5.4 mini's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-5-4-mini-vs-qwen3-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. GPT-5.4 mini scores higher in 2 categories and Qwen3.5 Plus in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.4 mini leads 51.4 to 46.0.
- The biggest single-benchmark swing is Mystery Game Puzzles: 11% for GPT-5.4 mini and 17% for Qwen3.5 Plus.
- Qwen3.5 Plus is cheaper at $0.40 / $2.40 per million input/output tokens, against $0.75 / $4.50 for GPT-5.4 mini.
- Qwen3.5 Plus accepts more context: 1M tokens versus 400K.

## Snapshot

| | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 44.8 | 42.3 |
| Rank | 69 | 103 |
| Context | 400K | 1M |
| Input $/M | $0.75 | $0.40 |
| Output $/M | $4.50 | $2.40 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.4 mini: 45.0 (#67)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| ALE-Bench | 1,189 | 621.92 |
| FrontierCode | 27% | — |
| LMArena WebDev | 1397 | — |
| SciCode | 49.9% | — |
| WeirdML | 60.3% | — |
| LMArena Coding | 1438 | — |

## Agentic & Tool Use

- GPT-5.4 mini: 29.6 (#74)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| DeepResearch Bench | 36.3% | — |
| Vending-Bench 2 | — | 0.54 |

## Reasoning

- GPT-5.4 mini: 30.3 (#77)
- Qwen3.5 Plus: 32.0 (#67)

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| Chess Puzzles | 24% | 22% |
| Mystery Game Puzzles | 11% | 17% |
| DTBench | 80% | 80.5% |
| LMCA | 40.8% | 36.4% |
| Epoch Capabilities Index | 148.83 | 146.79 |
| ARC-AGI-2 | 18.9% | — |
| Kagi LLM Benchmark | 37.9% | — |
| NYT Connections (extended) | 61.8% | — |
| ARC-AGI-1 | 63.7% | — |
| CritPt | 10% | — |
| Thematic Generalization | 61.7% | — |
| LMArena Hard Prompts | 1424 | — |
| ForecastBench | 57 | — |

## Math

- GPT-5.4 mini: 45.4 (#63)
- Qwen3.5 Plus: 47.9 (#55)

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | 86.7% |
| FrontierMath (Feb 2025 set) | 28.3% | 21% |
| FrontierMath Tier 4 (v1) | 2.1% | 2.1% |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 9.8% | — |
| ProofBench | 21% | — |
| LMArena Math | 1418 | — |

## Knowledge

- GPT-5.4 mini: 51.4 (#62)
- Qwen3.5 Plus: 46.0 (#78)

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | 86.9% | 84.8% |
| SimpleQA Verified | 29.4% | 25.4% |
| Vectara Hallucination Rate | 5.5% | 10.7% |
| LMArena Expert | 1434 | — |

## Multimodal

- GPT-5.4 mini: 39.0 (#51)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| LMArena Vision | 1245 | — |

## Multilingual

- GPT-5.4 mini: 52.1 (#94)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| LMArena Non-English | 1405 | — |
| LMArena Chinese | 1446 | — |
| LMArena French | 1440 | — |
| LMArena German | 1407 | — |
| LMArena Japanese | 1375 | — |
| LMArena Korean | 1369 | — |
| LMArena Russian | 1417 | — |
| LMArena Spanish | 1403 | — |

## Instruction Following

- GPT-5.4 mini: 74.3 (#99)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| LMArena Instruction Following | 1405 | — |

## Long Context

- GPT-5.4 mini: 42.9 (#107)
- Qwen3.5 Plus: 42.9 (#109)

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
| LMArena Longer Query | 1407 | — |

## Writing & Preference

- GPT-5.4 mini: 64.2 (#56)
- Qwen3.5 Plus: —

| Benchmark | GPT-5.4 mini | Qwen3.5 Plus |
|---|---|---|
| LMArena Text | 1411 | — |
| LMArena Creative Writing | 1370 | — |
| EQ-Bench Creative Writing | 1665 | — |
| LMArena Multi-Turn | 1429 | — |

## FAQ

### Is GPT-5.4 mini better than Qwen3.5 Plus?

GPT-5.4 mini is the stronger model overall, scoring 44.8 to 42.3 on the Noometry Index. Qwen3.5 Plus costs 1.9× less per token, which makes it the better buy when GPT-5.4 mini's lead doesn't matter for your workload.

### Which is cheaper, GPT-5.4 mini or Qwen3.5 Plus?

Qwen3.5 Plus is cheaper. It lists at $0.40 per million input tokens and $2.40 per million output tokens; GPT-5.4 mini lists at $0.75 and $4.50.

### Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 400K.

### How many benchmarks do GPT-5.4 mini and Qwen3.5 Plus share?

12 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Qwen3.5 Plus has 15.