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Qwen3.5 27B vs Qwen3.7 Plus Preview

Alibaba · released

Wins 1 of 8 areas

Long documents

Alibaba · released

Wins 7 of 8 areas

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

Qwen3.7 Plus Preview is the stronger all-rounder.Qwen3.5 27B is better at long documents.

Scores updated · 51 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.

Qwen3.5 27B$0.30 to read · $2.40 to write$2.70Price from Artificial Analysis
Qwen3.7 Plus Preview$0.40 to read · $1.60 to write$2.00Price from Alibaba's own price page

Qwen3.7 Plus Preview costs 26% 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 Qwen3.7 Plus Preview pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+53.8points aheadQwen3.7 Plus Preview72.3Qwen3.5 27B18.5
  • Completes tasks by operating a computer desktopOSWorld-Verified+17.1points aheadQwen3.7 Plus Preview73.3Qwen3.5 27B56.2
  • Hard command-line tasks in a real terminalTerminal-Bench Hard+14.4points aheadQwen3.7 Plus Preview47Qwen3.5 27B32.6

Where Qwen3.5 27B pulls ahead

  • Real work tasks from 44 professionsGDPVal+19.5points aheadQwen3.5 27B33Qwen3.7 Plus Preview13.5
  • Reasons across sets of long documentsAA-LCR+4.7points aheadQwen3.5 27B77.7Qwen3.7 Plus Preview73

Every test, side by side

All 51 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingQwen3.7 Plus Preview

Full coding ranking

AgentsQwen3.7 Plus Preview

Full agents ranking

ReasoningQwen3.7 Plus Preview

Full reasoning ranking

FactsQwen3.7 Plus Preview

Full facts ranking

Images and chartsQwen3.7 Plus Preview

Full images and charts ranking

MathQwen3.7 Plus Preview

Full math ranking

Long documentsQwen3.5 27B
  • AA-LCRQwen3.5 27B by 4.777.773+4.7

Full long documents ranking

Following instructionsQwen3.7 Plus Preview
  • IFBenchQwen3.7 Plus Preview by 2.475.678+2.4

Full following instructions ranking

Other results30 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, Qwen3.5 27B or Qwen3.7 Plus Preview?

Qwen3.7 Plus Preview wins seven of the eight areas we test: coding, agents, reasoning, facts, images and charts, math and following instructions. Qwen3.5 27B wins long documents.

Which is better for coding?

Qwen3.7 Plus Preview. It wins 6 of the 6 coding tests both models report; Qwen3.5 27B wins none.

Which is cheaper?

Qwen3.5 27B costs $0.30 per million input tokens and $2.40 per million output tokens; Qwen3.7 Plus Preview costs $0.40 and $1.60. That makes Qwen3.7 Plus Preview about 26% cheaper for the same work.

How do you compare the two?

We use the 51 benchmark tests both models have published scores on. The verdict counts the 21 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 30 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 Qwen3.5 27B with

Alibaba

Across the field

All comparisons