Model comparison

Gemini 3.1 Flash Lite vs Qwen3.5 Plus

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 40.8 on the Noometry Index. Gemini 3.1 Flash Lite costs 1.6× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.

Last verified October 10, 2026. 8 shared benchmarks.

Gemini 3.1 Flash Lite

Google

40.8

Rank #144 Confirmed

Qwen3.5 Plus

Alibaba (Qwen)

42.9

Rank #106 Confirmed

Summary

They share 8 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 3 gaps are clear of the uncertainty.
The widest gap is in reasoning, where Qwen3.5 Plus leads 32.8 to 22.9.
The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 80% for Gemini 3.1 Flash Lite and 86.7% for Qwen3.5 Plus.
Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 1M.

Side by side

Gemini 3.1 Flash Lite and Qwen3.5 Plus specifications
	Gemini 3.1 Flash Lite	Qwen3.5 Plus
Provider	Google	Alibaba (Qwen)
Noometry Index	40.8	42.9
Released	2026-03-03	2026-02-16
Weights	Proprietary	Proprietary
Context window	1.05M	1M
Max output	66K	66K
Input $ / M tokens	$0.25	$0.40
Output $ / M tokens	$1.50	$2.40
Results tracked	38	15

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Category by category

Coding Not comparable

Gemini 3.1 Flash Lite: 37.8 (#188), Qwen3.5 Plus: —

Coding benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
ALE-Bench	797.73	621.92
LMArena WebDev	1256	—
SciCode	41.9%	—
WeirdML	52.2%	—
LMArena Coding	1400	—

Agentic & Tool Use Not comparable

Gemini 3.1 Flash Lite: 30.2 (#79), Qwen3.5 Plus: —

Agentic & Tool Use benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
DeepResearch Bench	37.3%	—
Vending-Bench 2	—	0.54

Reasoning Qwen3.5 Plus leads

Gemini 3.1 Flash Lite: 22.9 (#186), Qwen3.5 Plus: 32.8 (#74)

Reasoning benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
Chess Puzzles	25%	22%
DTBench	76.8%	80.5%
LMCA	35%	36.4%
Epoch Capabilities Index	144.47	146.78
Kagi LLM Benchmark	67.2%	—
NYT Connections (extended)	8.2%	—
CritPt	1.1%	—
EnigmaEval	3%	—
Thematic Generalization	63.3%	—
LMArena Hard Prompts	1407	—
Mystery Game Puzzles	—	17%
ForecastBench	54.4	—

Math Qwen3.5 Plus leads

Gemini 3.1 Flash Lite: 40.7 (#90), Qwen3.5 Plus: 49.6 (#61)

Math benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
OTIS Mock AIME 2024-2025	80%	86.7%
FrontierMath (Tiers 1-3)	27.7%	—
LMArena Math	1428	—
FrontierMath (Feb 2025 set)	—	21%
FrontierMath Tier 4 (v1)	—	2.1%

Knowledge Qwen3.5 Plus leads

Gemini 3.1 Flash Lite: 41.9 (#104), Qwen3.5 Plus: 46.0 (#83)

Knowledge benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
GPQA Diamond	81.8%	84.8%
Vectara Hallucination Rate	8.2%	10.7%
Humanity's Last Exam	8.6%	—
SimpleQA Verified	—	25.4%
LMArena Expert	1398	—

Multimodal Not comparable

Gemini 3.1 Flash Lite: 39.4 (#60), Qwen3.5 Plus: —

Multimodal benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
LMArena Vision	1240	—

Multilingual Not comparable

Gemini 3.1 Flash Lite: 52.3 (#86), Qwen3.5 Plus: —

Multilingual benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
LMArena Non-English	1411	—
LMArena Chinese	1461	—
LMArena French	1424	—
LMArena German	1429	—
LMArena Japanese	1413	—
LMArena Korean	1392	—
LMArena Russian	1420	—
LMArena Spanish	1421	—

Instruction Following Not comparable

Gemini 3.1 Flash Lite: 72.7 (#131), Qwen3.5 Plus: —

Instruction Following benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
LMArena Instruction Following	1377	—

Long Context Too close to call

Gemini 3.1 Flash Lite: 42.5 (#122), Qwen3.5 Plus: 43.0 (#113)

Long Context benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
CL-bench	—	19.8%
CL-bench Life	—	12.4%
LMArena Longer Query	1394	—

Writing & Preference Not comparable

Gemini 3.1 Flash Lite: 60.9 (#94), Qwen3.5 Plus: —

Writing & Preference benchmarks
Benchmark	Gemini 3.1 Flash Lite	Qwen3.5 Plus
LMArena Text	1416	—
LMArena Creative Writing	1401	—
LMArena Multi-Turn	1417	—

Frequently asked questions

Is Gemini 3.1 Flash Lite better than Qwen3.5 Plus?

Which is cheaper, Gemini 3.1 Flash Lite or Qwen3.5 Plus?

Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.

Which has the bigger context window?

Gemini 3.1 Flash Lite does, with 1.05M tokens against 1M.

How many benchmarks do Gemini 3.1 Flash Lite and Qwen3.5 Plus share?

8 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Qwen3.5 Plus has 15.