Model comparison
Gemini 3 Flash Preview vs Qwen3.5-Flash
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 42.5 on the Noometry Index. Qwen3.5-Flash costs 6.4× less per token, which makes it the better buy when Gemini 3 Flash Preview's lead doesn't matter for your workload.
Last verified . 32 shared benchmarks.
Google
Alibaba (Qwen)Summary
- They share 32 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 8 categories and Qwen3.5-Flash in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Gemini 3 Flash Preview leads 50.9 to 34.2.
- The biggest single-benchmark swing is SimpleQA Verified: 66.8% for Gemini 3 Flash Preview and 20.3% for Qwen3.5-Flash.
- Qwen3.5-Flash is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.50 / $3 for Gemini 3 Flash Preview.
- Gemini 3 Flash Preview accepts more context: 1.05M tokens versus 1M.
Side by side
| Gemini 3 Flash Preview | Qwen3.5-Flash | |
|---|---|---|
| Provider | Alibaba (Qwen) | |
| Noometry Index | 52.3 | 42.5 |
| Released | 2025-12-17 | 2026-02-23 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1M |
| Max output | 66K | 66K |
| Input $ / M tokens | $0.50 | $0.10 |
| Output $ / M tokens | $3 | $0.40 |
| Results tracked | 59 | 32 |
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Category by category
Coding Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 50.9 (#42), Qwen3.5-Flash: 34.2 (#242)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena WebDev | 1439 | 1244 |
| LMArena Coding | 1460 | 1412 |
| ALE-Bench | 1,367 | 221.8 |
| SWE-bench Verified | 75.4% | — |
| SWE-bench Verified (bash only) | 75.8% | — |
| SWE-bench Multilingual | 72.7% | — |
| GSO | 9.8% | — |
| WeirdML | 61.6% | — |
Agentic & Tool Use Not comparable
Gemini 3 Flash Preview: 38.7 (#29), Qwen3.5-Flash: —
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| Vending-Bench 2 | 3,635 | 462.69 |
| Terminal-Bench | 64.3% | — |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 27.3% | — |
| τ²-bench Retail | 76.8% | — |
| τ²-bench Telecom | 91.2% | — |
| DeepResearch Bench | 49.8% | — |
| BALROG | 48.1% | — |
| GDP.pdf | 10% | — |
| LMArena Search | 1198 | — |
Reasoning Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 49.2 (#37), Qwen3.5-Flash: 33.7 (#72)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| Chess Puzzles | 40% | 21% |
| LMArena Hard Prompts | 1465 | 1403 |
| Mystery Game Puzzles | 26% | 20% |
| DTBench | 89.1% | 82.9% |
| LMCA | 43.1% | 29.1% |
| Epoch Capabilities Index | 151.8 | 143.98 |
| ARC-AGI-2 | 33.6% | — |
| SimpleBench | 61.1% | — |
| NYT Connections (extended) | 83.1% | — |
| ARC-AGI-1 | 84.7% | — |
| ForecastBench | 58.5 | — |
Math Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 51.7 (#55), Qwen3.5-Flash: 37.4 (#158)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | 51.2% | 18.2% |
| OTIS Mock AIME 2024-2025 | 95.6% | 84.4% |
| LMArena Math | 1473 | 1407 |
| FrontierMath (Feb 2025 set) | 35.6% | 6.2% |
| FrontierMath Tier 4 (v1) | 4.2% | 0% |
| FrontierMath Tier 4 | 17.1% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| ProofBench | 15% | — |
Knowledge Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 58.8 (#33), Qwen3.5-Flash: 43.2 (#93)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| GPQA Diamond | 89.4% | 82.3% |
| SimpleQA Verified | 66.8% | 20.3% |
| Vectara Hallucination Rate | 13.5% | 10.5% |
| LMArena Expert | 1462 | 1407 |
Multimodal Not comparable
Gemini 3 Flash Preview: 45.5 (#16), Qwen3.5-Flash: —
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena Vision | 1285 | — |
| GeoBench | 88% | — |
| VPCT | 72.6% | — |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1413 | — |
Multilingual Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 55.7 (#27), Qwen3.5-Flash: 50.5 (#121)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1458 | 1385 |
| LMArena Chinese | 1511 | 1446 |
| LMArena French | 1477 | 1412 |
| LMArena German | 1497 | 1390 |
| LMArena Japanese | 1489 | 1368 |
| LMArena Korean | 1443 | 1344 |
| LMArena Russian | 1480 | 1379 |
| LMArena Spanish | 1469 | 1400 |
Instruction Following Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 75.7 (#56), Qwen3.5-Flash: 72.6 (#139)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1437 | 1374 |
Long Context Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 44.4 (#67), Qwen3.5-Flash: 42.4 (#124)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1452 | 1392 |
Writing & Preference Gemini 3 Flash Preview leads
Gemini 3 Flash Preview: 65.5 (#45), Qwen3.5-Flash: 57.9 (#122)
| Benchmark | Gemini 3 Flash Preview | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1466 | 1397 |
| LMArena Creative Writing | 1457 | 1343 |
| LMArena Multi-Turn | 1471 | 1393 |
Frequently asked questions
Is Gemini 3 Flash Preview better than Qwen3.5-Flash?
Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 42.5 on the Noometry Index. Qwen3.5-Flash costs 6.4× less per token, which makes it the better buy when Gemini 3 Flash Preview's lead doesn't matter for your workload.
Which is cheaper, Gemini 3 Flash Preview or Qwen3.5-Flash?
Qwen3.5-Flash is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Gemini 3 Flash Preview lists at $0.50 and $3.
Is Gemini 3 Flash Preview or Qwen3.5-Flash better for coding?
Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 34.2 in the Noometry coding category.
Which has the bigger context window?
Gemini 3 Flash Preview does, with 1.05M tokens against 1M.
How many benchmarks do Gemini 3 Flash Preview and Qwen3.5-Flash share?
32 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and Qwen3.5-Flash has 32.