# GPT-5.2 vs Qwen3.5 Flash

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

- Canonical page: https://benchlm.ai/compare/gpt-5-2-vs-qwen3-5-flash
- Last updated: September 27, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.2 and Qwen3.5 Flash share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Qwen3.5 Flash has the lower published output-token price.
- Qwen3.5 Flash has the larger published context window at 1M.

## Model Snapshot

| Property | GPT-5.2 | Qwen3.5 Flash |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 1M |
| Independent public score (not head-to-head) | 61.37 | 45.49 |
| Benchmarks Covered | 15 | 6 |
| Pricing (input/output) | $1.75 / $14.00 | $0.10 / $0.40 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 42.6 (Supported · #42/105)
- Qwen3.5 Flash public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Flash | 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% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 41 (Supported · #54/135)
- Qwen3.5 Flash public-lane score: 26.5 (Estimated · #97/135)

| Benchmark | GPT-5.2 | Qwen3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80% | Coming soon | Coming soon |
| SWE-bench Pro | 55.6% | Coming soon | Coming soon |
| Vibe Code Bench | 53.50% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 83.3% | Coming soon |
| SWE-bench (Vals) | Coming soon | 64.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 60.6 (Unranked · 3 rankable rows)
- Qwen3.5 Flash public-lane score: Coming soon

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

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 66.3 (#23/50)
- Qwen3.5 Flash public-lane score: Coming soon

| Benchmark | GPT-5.2 | Qwen3.5 Flash | 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: Insufficient shared evidence
- GPT-5.2 public-lane score: 57.9 (Supported · #38/158)
- Qwen3.5 Flash public-lane score: 43 (Estimated · #80/158)

| Benchmark | GPT-5.2 | Qwen3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.4% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 82.8% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.1% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 91.2 (#15/124)
- Qwen3.5 Flash public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 57.4 (Unranked · 2 rankable rows)
- Qwen3.5 Flash public-lane score: 28.4 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.2 | Qwen3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 40.700% | 6.207% | GPT-5.2 |
| FrontierMath v2 (Tier 4) | 18.800% | 0.000% | GPT-5.2 |

## FAQ

### Is there enough evidence to pick between GPT-5.2 and Qwen3.5 Flash?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

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

## Explore More

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