# GPT-4.1 vs Qwen3.5-27B

> Side-by-side benchmark comparison for GPT-4.1 and Qwen3.5-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-1-vs-qwen3-5-27b
- Last updated: September 28, 2026

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

## Quick Verdict

Pick Qwen3.5-27B if you want the stronger benchmark profile. GPT-4.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Qwen3.5-27B leads overall 43.76 to 39.79.
- The clearest category separation is in instruction following, where the averages are 48.9 for GPT-4.1 and 91.5 for Qwen3.5-27B.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 66.3% and 85.5%.
- Qwen3.5-27B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-4.1 also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-4.1 | Qwen3.5-27B |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 39.79 | 43.76 |
| Benchmarks Covered | 7 | 16 |
| Pricing (input/output) | $2.00 / $8.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 32.5 (Estimated · #74/117)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 25.65% | 39.41% | Qwen3.5-27B |
| Terminal-Bench 2.0 | Coming soon | 41.6% | Coming soon |
| BrowseComp | Coming soon | 61% | Coming soon |
| OSWorld-Verified | Coming soon | 56.2% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 32.4 (Estimated · #86/142)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 54.6% | 72.4% | Qwen3.5-27B |
| SWE-Rebench | Coming soon | 58.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-4.1 public-lane score: 69.2 (Unranked · 2 rankable rows)
- Qwen3.5-27B public-lane score: 52.7 (Unranked · 3 rankable rows)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-4.1 public-lane score: 51.3 (Unranked · 1 rankable row)
- Qwen3.5-27B public-lane score: 71.6 (Unranked · 3 rankable rows)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 82.3% | Coming soon |
| MMVU | Coming soon | 73.3% | Coming soon |
| MathVision | Coming soon | 86.0% | Coming soon |
| V* | Coming soon | 93.7% | Coming soon |

### Knowledge

- Winner: Qwen3.5-27B
- GPT-4.1 public-lane score: 35.6 (Supported · #115/168)
- Qwen3.5-27B public-lane score: 42.3 (Supported · #87/168)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90.2% | Coming soon | Coming soon |
| GPQA | 66.3% | 85.5% | Qwen3.5-27B |
| MMLU-Pro | Coming soon | 86.1% | Coming soon |
| SuperGPQA | Coming soon | 65.6% | Coming soon |

### Multilingual

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 36.8 (#9/12)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 82.2% | Coming soon |

### Instruction Following

- Winner: Directional only
- GPT-4.1 public-lane score: 48.9 (#83/124)
- Qwen3.5-27B public-lane score: 91.5 (#13/124)

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 87.4% | 95% | Qwen3.5-27B |

### Mathematics

- Winner: Not comparable
- GPT-4.1 public-lane score: 28 (Unranked · 2 rankable rows)
- Qwen3.5-27B public-lane score: Coming soon

| Benchmark | GPT-4.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.517% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 0.000% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-4.1 or Qwen3.5-27B?

Qwen3.5-27B is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-4.1 and Qwen3.5-27B?

The widest category gap is in instruction following, where the averages are 48.9 for GPT-4.1 and 91.5 for Qwen3.5-27B.

### How many benchmarks does GPT-4.1 cover on BenchLM?

GPT-4.1 currently has 7 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.5-27B cover on BenchLM?

Qwen3.5-27B currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-4.1 vs GPT-4.1 mini](/compare/gpt-4-1-vs-gpt-4-1-mini)
- [Qwen3.5-27B vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-qwen3-5-27b)
- [GPT-4.1 vs GPT-4.1 nano](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [Qwen3.5-27B vs GPT-4.1 nano](/compare/gpt-4-1-nano-vs-qwen3-5-27b)

## Explore More

- [GPT-4.1 profile](/models/gpt-4-1)
- [Qwen3.5-27B profile](/models/qwen3-5-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)