# GPT-5.2 vs Qwen3.5 Plus

> Side-by-side benchmark comparison for GPT-5.2 and Qwen3.5 Plus across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-vs-qwen3-5-plus
- Last updated: September 28, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick GPT-5.2 if you want the stronger benchmark profile. Qwen3.5 Plus only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.2 leads overall 61.32 to 48.92.
- The clearest category separation is in mathematics, where the averages are 57.4 for GPT-5.2 and 39.3 for Qwen3.5 Plus.
- The biggest single benchmark swing is Vibe Code Bench in Coding, with scores of 53.50% and 15.74%.
- Qwen3.5 Plus is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Qwen3.5 Plus also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-5.2 | Qwen3.5 Plus |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 1M |
| Overall Score | 61.32 | 48.92 |
| Benchmarks Covered | 15 | 4 |
| Pricing (input/output) | $1.75 / $14.00 | $0.40 / $2.40 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-5.2 public-lane score: 42.7 (Supported · #53/117)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 65.8% | Coming soon | Coming soon |
| OSWorld-Verified | 47.3% | Coming soon | Coming soon |
| Gert Labs | 46.54% | Coming soon | Coming soon |
| JobBench | 34.3% | 18.5% | GPT-5.2 |

### Coding

- Winner: Not comparable
- GPT-5.2 public-lane score: 39.6 (Supported · #61/142)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80% | Coming soon | Coming soon |
| SWE-bench Pro | 55.6% | Coming soon | Coming soon |
| Vibe Code Bench | 53.50% | 15.74% | GPT-5.2 |

### Reasoning

- Winner: Not comparable
- GPT-5.2 public-lane score: 60.7 (Unranked · 3 rankable rows)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.9% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.2 public-lane score: 67.3 (#23/50)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 79.5% | Coming soon | Coming soon |
| MathVision | 83.0% | Coming soon | Coming soon |
| CharXiv | 82.1% | Coming soon | Coming soon |
| V* | 75.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- GPT-5.2 public-lane score: 57.9 (Supported · #43/168)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.4% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-5.2 public-lane score: 91.2 (#15/124)
- Qwen3.5 Plus public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GPT-5.2 public-lane score: 57.4 (Unranked · 2 rankable rows)
- Qwen3.5 Plus public-lane score: 39.3 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.2 | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 40.700% | 21.034% | GPT-5.2 |
| FrontierMath v2 (Tier 4) | 18.800% | 2.083% | GPT-5.2 |

## FAQ

### Which is better overall, GPT-5.2 or Qwen3.5 Plus?

GPT-5.2 is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.2 and Qwen3.5 Plus?

The widest category gap is in mathematics, where the averages are 57.4 for GPT-5.2 and 39.3 for Qwen3.5 Plus.

### How many benchmarks does GPT-5.2 cover on BenchLM?

GPT-5.2 currently has 15 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.5 Plus cover on BenchLM?

Qwen3.5 Plus currently has 4 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Qwen3.5 Plus vs GPT-5.2 Pro](/compare/gpt-5-2-pro-vs-qwen3-5-plus)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)
- [Qwen3.5 Plus vs GPT-5.2 Instant](/compare/gpt-5-2-instant-vs-qwen3-5-plus)

## Explore More

- [GPT-5.2 profile](/models/gpt-5-2)
- [Qwen3.5 Plus profile](/models/qwen3-5-plus)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)