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VECTOR WIREAI INTELLIGENCE
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Gemini 3.5 Flash vs Qwen3.5 397B A17B

Google · released

Wins 6 of 8 areas

Coding · Agents · Reasoning · Facts · Images and charts · Math

Alibaba · released

Wins 2 of 8 areas

Long documents · Following instructions

Gemini 3.5 Flash is the stronger all-rounder.Qwen3.5 397B A17B is cheaper and better at long documents.

Both rank among the ten best models we track in following instructions.

Scores updated · 31 tests both models report · How we compare

Where each one wins

Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Long documents and following instructions rest on a single test each.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Gemini 3.5 Flash$1.50 to read · $9.00 to write$11Price from Artificial Analysis
Qwen3.5 397B A17B$0.60 to read · $3.60 to write$4.20Price from Artificial Analysis

Qwen3.5 397B A17B costs 60% less for the same work.

The biggest differences

The tests each model wins by the widest margin, up to three each. Scores are out of 100.

Where Gemini 3.5 Flash pulls ahead

  • Short factual questions, answered correctlySimpleQA Verified+40.2points aheadGemini 3.5 Flash66.2Qwen3.5 397B A17B26
  • Long professional tasks in banking, consulting and lawAA ApexAgents+31.8points aheadGemini 3.5 Flash47.1Qwen3.5 397B A17B15.3
  • Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+31.6points aheadGemini 3.5 Flash62.8Qwen3.5 397B A17B31.2

Where Qwen3.5 397B A17B pulls ahead

  • Reasons across sets of long documentsAA-LCR+4points aheadQwen3.5 397B A17B77.3Gemini 3.5 Flash73.3
  • Follows unfamiliar, precisely checkable instructionsIFBench+2.5points aheadQwen3.5 397B A17B78.8Gemini 3.5 Flash76.3

Every test, side by side

All 31 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingGemini 3.5 Flash

Full coding ranking

AgentsGemini 3.5 Flash

Full agents ranking

ReasoningGemini 3.5 Flash

Full reasoning ranking

FactsGemini 3.5 Flash

Full facts ranking

Images and chartsGemini 3.5 Flash

Full images and charts ranking

MathGemini 3.5 Flash

Full math ranking

Long documentsQwen3.5 397B A17B
  • AA-LCRQwen3.5 397B A17B by 473.377.3+4

Full long documents ranking

Following instructionsQwen3.5 397B A17B
  • IFBenchQwen3.5 397B A17B by 2.576.378.8+2.5

Full following instructions ranking

Other results8 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, Gemini 3.5 Flash or Qwen3.5 397B A17B?

Gemini 3.5 Flash wins six of the eight areas we test: coding, agents, reasoning, facts, images and charts and math. Qwen3.5 397B A17B wins long documents and following instructions, and costs 60% less.

Which is better for coding?

Gemini 3.5 Flash. It wins 4 of the 5 coding tests both models report; Qwen3.5 397B A17B wins none, and 1 is a tie.

Which is cheaper?

Gemini 3.5 Flash costs $1.50 per million input tokens and $9.00 per million output tokens; Qwen3.5 397B A17B costs $0.60 and $3.60. That makes Qwen3.5 397B A17B about 60% cheaper for the same work.

How do you compare the two?

We use the 31 benchmark tests both models have published scores on. The verdict counts the 23 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 8 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.

Compare Gemini 3.5 Flash with

Google

Across the field

Compare Qwen3.5 397B A17B with

Alibaba

Across the field

All comparisons