# GPT-4.1 vs Qwen3.5 397B

> Side-by-side benchmark comparison for GPT-4.1 and Qwen3.5 397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4-1-vs-qwen3-5-397b
- Last updated: September 29, 2026

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

## Quick Verdict

Pick Qwen3.5 397B 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 397B leads overall 51 to 39.74.
- The clearest category separation is in instruction following, where the averages are 48.9 for GPT-4.1 and 0 for Qwen3.5 397B.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 66.3% and 88.4%.
- Qwen3.5 397B 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 397B |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Overall Score | 39.74 | null |
| Benchmarks Covered | 7 | 38 |
| Pricing (input/output) | $2.00 / $8.00 | $0.60 / $3.60 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 25.65% | 46.76% | Qwen3.5 397B |
| Terminal-Bench 2.0 | Coming soon | 52.5% | Coming soon |
| BrowseComp | Coming soon | 62% | Coming soon |
| Claw-Eval | Coming soon | 56.8% | Coming soon |
| QwenClawBench | Coming soon | 51.8% | Coming soon |
| τ³-bench results | Coming soon | 68.4% | Coming soon |
| VITA-Bench | Coming soon | 43.7% | Coming soon |
| DeepPlanning | Coming soon | 37.6% | Coming soon |
| Toolathlon | Coming soon | 36.3% | Coming soon |
| MCP Atlas | Coming soon | 46.1% | Coming soon |
| MCP-Tasks | Coming soon | 74.2% | Coming soon |
| WideResearch | Coming soon | 74.0% | Coming soon |
| ResearchClawBench | Coming soon | 14.2% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 54.6% | 76.2% | Qwen3.5 397B |
| LiveCodeBench v6 | Coming soon | 83.6% | Coming soon |
| SWE-bench Pro | Coming soon | 50.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-4.1 public-lane score: 69.2 (Unranked · 2 rankable rows)
- Qwen3.5 397B public-lane score: 61 (Unranked · 2 rankable rows)

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 63.2% | Coming soon |
| AI-Needle | Coming soon | 68.7% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-4.1 public-lane score: 51.3 (Unranked · 1 rankable row)
- Qwen3.5 397B public-lane score: 63.9 (#28/50)

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 79% | Coming soon |
| MathVision | Coming soon | 88.6% | Coming soon |
| CharXiv | Coming soon | 80.8% | Coming soon |
| VideoMMMU | Coming soon | 84.7% | Coming soon |
| ScreenSpot Pro | Coming soon | 65.6% | Coming soon |
| V* | Coming soon | 95.8% | Coming soon |

### Knowledge

- Winner: Not comparable
- GPT-4.1 public-lane score: 35.5 (Supported · #116/169)
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90.2% | Coming soon | Coming soon |
| GPQA | 66.3% | 88.4% | Qwen3.5 397B |
| SuperGPQA | Coming soon | 70.4% | Coming soon |
| MMLU-Pro | Coming soon | 87.8% | Coming soon |
| MMLU-Redux | Coming soon | 94.9% | Coming soon |
| C-Eval | Coming soon | 93% | Coming soon |
| HLE | Coming soon | 28.7% | Coming soon |

### Multilingual

- Winner: Not comparable
- GPT-4.1 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 69.7 (#5/12)

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 84.7% | Coming soon |
| NOVA-63 | Coming soon | 59.1% | Coming soon |

### Instruction Following

- Winner: Directional only
- GPT-4.1 public-lane score: 48.9 (#83/124)
- Qwen3.5 397B public-lane score: 0 (#124/124)

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 87.4% | 92.6% | Qwen3.5 397B |

### Mathematics

- Winner: Not comparable
- GPT-4.1 public-lane score: 28 (Unranked · 2 rankable rows)
- Qwen3.5 397B public-lane score: 73.5 (Unranked · 5 rankable rows)

| Benchmark | GPT-4.1 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.517% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 0.000% | Coming soon | Coming soon |
| AIME26 | Coming soon | 93.3% | Coming soon |
| HMMT Feb 2025 | Coming soon | 94.8% | Coming soon |
| HMMT Nov 2025 | Coming soon | 92.7% | Coming soon |
| HMMT Feb 2026 | Coming soon | 87.9% | Coming soon |
| MMAnswerBench | Coming soon | 80.9% | Coming soon |

## FAQ

### Which is better overall, GPT-4.1 or Qwen3.5 397B?

Qwen3.5 397B is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-4.1 and Qwen3.5 397B?

The widest category gap is in instruction following, where the averages are 48.9 for GPT-4.1 and 0 for Qwen3.5 397B.

### 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 397B cover on BenchLM?

Qwen3.5 397B currently has 38 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 397B vs GPT-4.1 mini](/compare/gpt-4-1-mini-vs-qwen3-5-397b)
- [GPT-4.1 vs GPT-4.1 nano](/compare/gpt-4-1-vs-gpt-4-1-nano)
- [Qwen3.5 397B vs GPT-4.1 nano](/compare/gpt-4-1-nano-vs-qwen3-5-397b)

## Explore More

- [GPT-4.1 profile](/models/gpt-4-1)
- [Qwen3.5 397B profile](/models/qwen3-5-397b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)