# Gemini 3.5 Flash vs Qwen3.5 397B

> Side-by-side benchmark comparison for Gemini 3.5 Flash and Qwen3.5 397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-5-flash-vs-qwen3-5-397b
- Last updated: October 2, 2026

- Shared sourced benchmarks: 8
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Gemini 3.5 Flash if you want the stronger benchmark profile. Qwen3.5 397B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 3.5 Flash leads overall 63.95 to 52.
- The clearest category separation is in instruction following, where the averages are 84.1 for Gemini 3.5 Flash and 0 for Qwen3.5 397B.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 83.6% and 46.1%.
- Qwen3.5 397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.5 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.5 Flash | Qwen3.5 397B |
|----------|----------|----------|
| Creator | Google | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Overall Score | 63.95 | null |
| Benchmarks Covered | 27 | 38 |
| Pricing (input/output) | $1.50 / $9.00 | $0.60 / $3.60 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemini 3.5 Flash public-lane score: 50.7 (Supported · #42/119)
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 76.2% | Coming soon | Coming soon |
| MCP Atlas | 83.6% | 46.1% | Gemini 3.5 Flash |
| Toolathlon | 56.5% | 36.3% | Gemini 3.5 Flash |
| OSWorld-Verified | 78.4% | Coming soon | Coming soon |
| Finance Agent v2 | 57.9% | Coming soon | Coming soon |
| Gert Labs | 61.85% | 46.76% | Gemini 3.5 Flash |
| ResearchClawBench | 18.0% | 14.2% | Gemini 3.5 Flash |
| Terminal-Bench 2.1 (Vals) | 74.2% | Coming soon | Coming soon |
| 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 |
| MCP-Tasks | Coming soon | 74.2% | Coming soon |
| WideResearch | Coming soon | 74.0% | Coming soon |

### Coding

- Winner: Not comparable
- Gemini 3.5 Flash public-lane score: 52.3 (Supported · #39/144)
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 76.2% | Coming soon | Coming soon |
| SWE-bench Pro | 55.1% | 50.9% | Gemini 3.5 Flash |
| Vibe Code Bench | 48.68% | Coming soon | Coming soon |
| cursorBench31 | 49.8% | Coming soon | Coming soon |
| CursorBench 3.2 | 48.8% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.6% | Coming soon | Coming soon |
| SWE-bench (Vals) | 78.8% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 76.2% | Coming soon |
| LiveCodeBench v6 | Coming soon | 83.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.5 Flash public-lane score: 62.8 (#20/27)
- Qwen3.5 397B public-lane score: 60.9 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 77.3% | Coming soon | Coming soon |
| MRCR 1M | 26.6% | Coming soon | Coming soon |
| ARC-AGI-2 | 72.1% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 63.2% | Coming soon |
| AI-Needle | Coming soon | 68.7% | Coming soon |

### Multimodal & Grounded

- Winner: Gemini 3.5 Flash
- Gemini 3.5 Flash public-lane score: 87.8 (#6/49)
- Qwen3.5 397B public-lane score: 63.9 (#27/49)

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 84.2% | 80.8% | Gemini 3.5 Flash |
| MMMU-Pro | 83.6% | 79% | Gemini 3.5 Flash |
| Blueprint-Bench 2 | 33.6% | Coming soon | Coming soon |
| MathVision | Coming soon | 88.6% | 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
- Gemini 3.5 Flash public-lane score: 64 (Supported · #30/171)
- Qwen3.5 397B public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 92.7% | Coming soon | Coming soon |
| HLE | 40.2% | 28.7% | Gemini 3.5 Flash |
| GPQA Diamond (Vals) | 92.7% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.5% | Coming soon | Coming soon |
| GPQA | Coming soon | 88.4% | Coming soon |
| 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 |

### Multilingual

- Winner: Not comparable
- Gemini 3.5 Flash public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 93.8 (#5/16)

| Benchmark | Gemini 3.5 Flash | 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
- Gemini 3.5 Flash public-lane score: 84.1 (#43/125)
- Qwen3.5 397B public-lane score: 0 (#125/125)

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 92.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Gemini 3.5 Flash public-lane score: 55.1 (Unranked · 2 rankable rows)
- Qwen3.5 397B public-lane score: 73.5 (Unranked · 5 rankable rows)

| Benchmark | Gemini 3.5 Flash | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 38.966% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 14.583% | 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, Gemini 3.5 Flash or Qwen3.5 397B?

Gemini 3.5 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.5 Flash and Qwen3.5 397B?

The widest category gap is in instruction following, where the averages are 84.1 for Gemini 3.5 Flash and 0 for Qwen3.5 397B.

### How many benchmarks does Gemini 3.5 Flash cover on BenchLM?

Gemini 3.5 Flash currently has 27 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

- [Gemini 3.5 Flash vs Gemini 3.5 Flash Cyber](/compare/gemini-3-5-flash-vs-gemini-3-5-flash-cyber)
- [Qwen3.5 397B vs Gemini 3.5 Flash Cyber](/compare/gemini-3-5-flash-cyber-vs-qwen3-5-397b)
- [Gemini 3.5 Flash vs Qwen3.5 397B (Reasoning)](/compare/gemini-3-5-flash-vs-qwen3-5-397b-reasoning)
- [Qwen3.5 397B vs Qwen3.5 397B (Reasoning)](/compare/qwen3-5-397b-vs-qwen3-5-397b-reasoning)

## Explore More

- [Gemini 3.5 Flash profile](/models/gemini-3-5-flash)
- [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)