Noometry

Model comparison

Gemini 3.1 Pro Preview vs Qwen3.5-9B

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 33.3 on the Noometry Index. Qwen3.5-9B costs 40× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Last verified . 10 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #20 Confirmed

Qwen3.5-9B Alibaba (Qwen)

33.3

Rank #235 Confirmed

Summary

  • They share 10 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 5 categories and Qwen3.5-9B in 0 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 22.5.
  • The biggest single-benchmark swing is Terminal-Bench: 80.2% for Gemini 3.1 Pro Preview and 9.2% for Qwen3.5-9B.
  • Qwen3.5-9B is cheaper at $0.10 / $0.15 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
  • Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 262K.
  • Qwen3.5-9B has downloadable open weights; the other is API-only.

Side by side

Gemini 3.1 Pro PreviewQwen3.5-9B
ProviderGoogleAlibaba (Qwen)
Noometry Index56.733.3
Released2026-02-192026-02-23
WeightsProprietaryOpen
Context window1.05M262K
Max output66K66K
Input $ / M tokens$2$0.10
Output $ / M tokens$12$0.15
Results tracked7110

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Category by category

Coding Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 42.7 (#88), Qwen3.5-9B: 35.3 (#213)

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
SciCode58.9%27.5%
SWE-bench Verified75.6%—
DeepSWE11.7%—
LMArena WebDev1446—
GSO22.6%—
WeirdML72.1%—
LMArena Coding1483—
MirrorCode8.9%—
ALE-Bench1,161—
AlgoTune2.02—

Agentic & Tool Use Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 37.7 (#33), Qwen3.5-9B: 14.4 (#143)

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
Terminal-Bench80.2%9.2%
APEX-Agents35.3%—
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
GDP.pdf17%—
LMArena Search1211—
METR Time Horizons77%—
Vending-Bench 23,774—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#9), Qwen3.5-9B: 22.5 (#178)

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
CritPt17.7%0.3%
Chess Puzzles55%12%
DTBench97.1%71.2%
LMCA53.8%24.5%
Epoch Capabilities Index154.92139.45
ARC-AGI-277.1%—
SimpleBench79.6%—
NYT Connections (extended)97.4%—
ARC-AGI-198%—
EnigmaEval36.8%—
Thematic Generalization79.4%—
EBR-Bench14.3%—
LMArena Hard Prompts1484—
Mystery Game Puzzles34%—
ForecastBench59—

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 61.8 (#28), Qwen3.5-9B: 33.5 (#174)

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
MathArena Final-Answer Competitions86.5%48.5%
OTIS Mock AIME 2024-202595.6%61.7%
FrontierMath (Tiers 1-3)59.6%—
FrontierMath Tier 426.8%—
ProofBench26%—
LMArena Math1485—
FrontierMath (Feb 2025 set)36.9%—
FrontierMath Tier 4 (v1)16.7%—

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), Qwen3.5-9B: 46.0 (#77)

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
GPQA Diamond94.4%79%
Humanity's Last Exam46.4%—
SimpleQA Verified73.5%—
Vectara Hallucination Rate10.4%—
LMArena Expert1484—

Multimodal Not comparable

Gemini 3.1 Pro Preview: 38.1 (#60), Qwen3.5-9B: —

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
LMArena Vision1296—
Blueprint-Bench 226.5%—
Furniture Assembly26.7%—
LMArena Document1444—

Multilingual Not comparable

Gemini 3.1 Pro Preview: 57.1 (#11), Qwen3.5-9B: —

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
LMArena Non-English1475—
LMArena Chinese1528—
LMArena French1488—
LMArena German1491—
LMArena Japanese1494—
LMArena Korean1458—
LMArena Russian1496—
LMArena Spanish1480—

Instruction Following Not comparable

Gemini 3.1 Pro Preview: 77.1 (#31), Qwen3.5-9B: —

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
LMArena Instruction Following1465—

Long Context Not comparable

Gemini 3.1 Pro Preview: 47.3 (#17), Qwen3.5-9B: —

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
CL-bench20.8%—
CL-bench Life16.9%—
LMArena Longer Query1482—

Writing & Preference Not comparable

Gemini 3.1 Pro Preview: 66.3 (#36), Qwen3.5-9B: —

BenchmarkGemini 3.1 Pro PreviewQwen3.5-9B
LMArena Text1480—
LMArena Creative Writing1482—
EQ-Bench Creative Writing1491—
EQ-Bench 41142—
LMArena Multi-Turn1486—

Frequently asked questions

Is Gemini 3.1 Pro Preview better than Qwen3.5-9B?

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 33.3 on the Noometry Index. Qwen3.5-9B costs 40× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.1 Pro Preview or Qwen3.5-9B?

Qwen3.5-9B is cheaper. It lists at $0.10 per million input tokens and $0.15 per million output tokens; Gemini 3.1 Pro Preview lists at $2 and $12.

Is Gemini 3.1 Pro Preview or Qwen3.5-9B better for coding?

Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.7 versus 35.3 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Pro Preview does, with 1.05M tokens against 262K.

How many benchmarks do Gemini 3.1 Pro Preview and Qwen3.5-9B share?

10 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Qwen3.5-9B has 10.

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