Qwen3.5 4B is the stronger all-rounder.
Scores updated · 12 tests both models report · How we compare
Where each one wins
Tests won in each of the two 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.
Reasoning rests on a single test.
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.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Qwen3.5 4B pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+54points ahead
- Reads text in imagesOCRBench+21.2points ahead
- Questions that truly need the image to answerMMStar+18.4points ahead
Where LFM2-VL-450M pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 12 tests both models report. The winning score is in its model's colour; marks a score checked independently.
Images and chartsQwen3.5 4B
Other results7 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.
- MMLU-ProQwen3.5 4B by 61.917.279.1+61.9
- IFEvalQwen3.5 4B by 34.451.886.2+34.4
- MM-IFEvalQwen3.5 4B by 3033.163.1+30
- MMMBQwen3.5 4B by 27.754.382+27.7
- MMMU (val) (Pass@1)Qwen3.5 4B by 15.934.450.3+15.9
- RealWorldQAQwen3.5 4B by 15.15267.1+15.1
- POPEQwen3.5 4B by 2.283.886+2.2
Questions people ask
Which is better, LFM2-VL-450M or Qwen3.5 4B?
Qwen3.5 4B wins all two areas where both have results: reasoning and images and charts. LFM2-VL-450M wins none.
How do you compare the two?
We use the 12 benchmark tests both models have published scores on. The verdict counts the 5 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 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.