Gemini 3 Flash Preview is the stronger all-rounder.Qwen3.5 Flash is cheaper.
Scores updated · 8 tests both models report · How we compare
Where each one wins
Tests won in each of the three areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Coding and math 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.
Qwen3.5 Flash costs 86% 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 Flash Preview pulls ahead
- Short factual questions, answered correctlySimpleQA Verified+46.5points ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+32.9points ahead
Where Qwen3.5 Flash pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 8 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 3 Flash Preview
- LMArena · WebDevGemini 3 Flash Preview by 201 rating points14391238+201 rating
FactsEven
- SimpleQA VerifiedGemini 3 Flash Preview by 46.566.820.3+46.5
- Vectara HHEM hallucination ratelower is betterQwen3.5 Flash by 313.510.5+3
MathGemini 3 Flash Preview
- FrontierMath Tiers 1-3 (v2)Gemini 3 Flash Preview by 32.951.218.3+32.9
Other results4 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.
- vectara_avg_summary_lengthQwen3.5 Flash by 4.890.295+4.8
- frontiermath_tier_4_v1Gemini 3 Flash Preview by 4.24.20+4.2
- vectara_factual_consistencyQwen3.5 Flash by 386.589.5+3
- vectara_answer_ratetie99.899.8tie
Questions people ask
Which is better, Gemini 3 Flash Preview or Qwen3.5 Flash?
Gemini 3 Flash Preview wins two of the three areas where both have results: coding and math. Qwen3.5 Flash wins none, but costs 86% less. They are level on facts.
Which is better for coding?
Gemini 3 Flash Preview. It wins the one coding test both models report.
Which is cheaper?
Gemini 3 Flash Preview costs $0.50 per million input tokens and $3.00 per million output tokens; Qwen3.5 Flash costs $0.10 and $0.40. That makes Qwen3.5 Flash about 86% cheaper for the same work.
How do you compare the two?
We use the 8 benchmark tests both models have published scores on. The verdict counts the 4 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 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.