# Gemini 3.8 Flash vs Qwen3.5 27B

> Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 41.9 on the Noometry Index. Qwen3.5 27B costs 1.8× less per token, which makes it the better buy when Gemini 3.8 Flash's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gemini-3-8-flash-vs-qwen3-5-27b
- Last updated: 2026-10-10
- Shared benchmarks: 25

## Summary

- They share 25 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 9 categories and Qwen3.5 27B in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 27.5.
- The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.8 Flash and 47.9% for Qwen3.5 27B.
- Qwen3.5 27B is cheaper at $0.30 / $2.40 per million input/output tokens, against $0.75 / $3.75 for Gemini 3.8 Flash.
- Gemini 3.8 Flash accepts more context: 1.05M tokens versus 262K.
- Qwen3.5 27B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| Provider | Google | Alibaba (Qwen) |
| Noometry Index | 61.8 | 41.9 |
| Rank | 11 | 127 |
| Context | 1.05M | 262K |
| Input $/M | $0.75 | $0.30 |
| Output $/M | $3.75 | $2.40 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3.8 Flash: 59.2 (#15)
- Qwen3.5 27B: 38.9 (#168)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena WebDev | 1584 | 1358 |
| WeirdML | 84.8% | 39.5% |
| LMArena Coding | 1510 | 1427 |
| ALE-Bench | 1,270 | 349.45 |
| DeepSWE | 73.8% | — |
| FrontierCode | 41.2% | — |
| CursorBench | 39.6% | — |
| FrontierSWE | 19.6% | — |
| SciCode | 56.6% | — |

## Agentic & Tool Use

- Gemini 3.8 Flash: 41.8 (#21)
- Qwen3.5 27B: —

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| Vending-Bench 2 | 5,094 | 201.98 |
| APEX-Agents | 64.3% | — |
| Remote Labor Index | 5.8% | — |
| GDP.pdf | 23.4% | — |

## Reasoning

- Gemini 3.8 Flash: 76.9 (#5)
- Qwen3.5 27B: 27.5 (#117)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| NYT Connections (extended) | 97.4% | 47.9% |
| LMArena Hard Prompts | 1508 | 1414 |
| DTBench | 95.7% | 82.4% |
| LMCA | 52.9% | 34% |
| ARC-AGI-2 | 89.2% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 18.3% | — |
| Chess Puzzles | 61% | — |
| Thematic Generalization | — | 45.5% |
| Mystery Game Puzzles | 47% | — |
| Surface Evolver Bench | 76.9% | — |
| Epoch Capabilities Index | 156.71 | — |

## Math

- Gemini 3.8 Flash: 65.3 (#28)
- Qwen3.5 27B: 38.8 (#127)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Math | 1528 | 1429 |
| FrontierMath (Tiers 1-3) | 68.4% | — |
| FrontierMath Tier 4 | 22% | — |
| MathArena Final-Answer Competitions | — | 56.7% |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 48% | — |

## Knowledge

- Gemini 3.8 Flash: 74.8 (#2)
- Qwen3.5 27B: 38.0 (#150)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Expert | 1524 | 1428 |
| GPQA Diamond | 95.4% | — |
| Humanity's Last Exam | 44.5% | — |
| SimpleQA Verified | 69.7% | — |
| Vectara Hallucination Rate | — | 12.1% |

## Multimodal

- Gemini 3.8 Flash: 40.7 (#45)
- Qwen3.5 27B: 39.4 (#59)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Vision | 1314 | 1241 |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 31.7% | — |

## Multilingual

- Gemini 3.8 Flash: 58.0 (#5)
- Qwen3.5 27B: 50.8 (#115)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Non-English | 1491 | 1390 |
| LMArena Chinese | 1554 | 1478 |
| LMArena French | 1498 | 1410 |
| LMArena German | 1493 | 1393 |
| LMArena Japanese | 1502 | 1345 |
| LMArena Korean | 1459 | 1358 |
| LMArena Russian | 1515 | 1390 |
| LMArena Spanish | 1485 | 1407 |

## Instruction Following

- Gemini 3.8 Flash: 78.0 (#13)
- Qwen3.5 27B: 73.5 (#119)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Instruction Following | 1490 | 1393 |

## Long Context

- Gemini 3.8 Flash: 46.3 (#24)
- Qwen3.5 27B: 43.1 (#106)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Longer Query | 1508 | 1413 |

## Writing & Preference

- Gemini 3.8 Flash: 72.2 (#15)
- Qwen3.5 27B: 59.3 (#111)

| Benchmark | Gemini 3.8 Flash | Qwen3.5 27B |
|---|---|---|
| LMArena Text | 1499 | 1409 |
| LMArena Creative Writing | 1492 | 1362 |
| LMArena Multi-Turn | 1501 | 1410 |
| EQ-Bench Creative Writing | 1748 | — |

## FAQ

### Is Gemini 3.8 Flash better than Qwen3.5 27B?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 41.9 on the Noometry Index. Qwen3.5 27B costs 1.8× less per token, which makes it the better buy when Gemini 3.8 Flash's lead doesn't matter for your workload.

### Which is cheaper, Gemini 3.8 Flash or Qwen3.5 27B?

Qwen3.5 27B is cheaper. It lists at $0.30 per million input tokens and $2.40 per million output tokens; Gemini 3.8 Flash lists at $0.75 and $3.75.

### Is Gemini 3.8 Flash or Qwen3.5 27B better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 38.9 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 262K.

### How many benchmarks do Gemini 3.8 Flash and Qwen3.5 27B share?

25 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Qwen3.5 27B has 28.