# Gemini 3 Flash vs Qwen3.5 Plus

> Side-by-side benchmark comparison for Gemini 3 Flash and Qwen3.5 Plus across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-flash-vs-qwen3-5-plus
- Last updated: September 28, 2026

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

## Quick Verdict

Pick Gemini 3 Flash 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

- Gemini 3 Flash leads overall 55.57 to 48.92.
- The clearest category separation is in mathematics, where the averages are 50 for Gemini 3 Flash and 39.3 for Qwen3.5 Plus.
- The biggest single benchmark swing is FrontierMath v2 (Tiers 1-3) in Mathematics, with scores of 35.640% and 21.034%.
- Qwen3.5 Plus is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Gemini 3 Flash | Qwen3.5 Plus |
|----------|----------|----------|
| Creator | Google | Alibaba |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 55.57 | 48.92 |
| Benchmarks Covered | 11 | 4 |
| Pricing (input/output) | $0.50 / $3.00 | $0.40 / $2.40 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 31.6 (Supported · #76/117)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | Gemini 3 Flash | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 49.2% | Coming soon | Coming soon |
| Gert Labs | 56.63% | Coming soon | Coming soon |
| JobBench | 11.4% | 18.5% | Qwen3.5 Plus |
| Terminal-Bench 2.1 (Vals) | 53.9% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 36.3 (Supported · #73/142)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | Gemini 3 Flash | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 20.20% | 15.74% | Gemini 3 Flash |
| LiveCodeBench (Vals) | 85.6% | Coming soon | Coming soon |
| SWE-bench (Vals) | 75.0% | Coming soon | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 60.3 (Unranked · 2 rankable rows)
- Qwen3.5 Plus public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 76.9 (Unranked · 1 rankable row)
- Qwen3.5 Plus public-lane score: Coming soon

### Knowledge

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 54.6 (Supported · #46/168)
- Qwen3.5 Plus public-lane score: Coming soon

| Benchmark | Gemini 3 Flash | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 87.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 64.7 (#70/124)
- Qwen3.5 Plus public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- Gemini 3 Flash public-lane score: 50 (Unranked · 2 rankable rows)
- Qwen3.5 Plus public-lane score: 39.3 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3 Flash | Qwen3.5 Plus | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 35.640% | 21.034% | Gemini 3 Flash |
| FrontierMath v2 (Tier 4) | 4.167% | 2.083% | Gemini 3 Flash |

## FAQ

### Which is better overall, Gemini 3 Flash or Qwen3.5 Plus?

Gemini 3 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3 Flash and Qwen3.5 Plus?

The widest category gap is in mathematics, where the averages are 50 for Gemini 3 Flash and 39.3 for Qwen3.5 Plus.

### How many benchmarks does Gemini 3 Flash cover on BenchLM?

Gemini 3 Flash currently has 11 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

- [Gemini 3 Flash vs GPT-6 Astra](/compare/gemini-3-flash-vs-gpt-6-astra)
- [Qwen3.5 Plus vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-5-plus)
- [Gemini 3 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-flash)
- [Qwen3.5 Plus vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-5-plus)

## Explore More

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