Qwen3.5-27B

Qwen
Qwen3.5-27B cover image

Cost/1M tokens

input
$0.26
output
$2.60
Context
262Ktokens
Released
8mo ago
Size
27Bparameters

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

Not evaluated in DeepSWE 1.1

Arena Text

Best Arena rating per model · Higher is better

Arena #158

  1. 1467
    MiMo-V2.5-ProSimilar price
  2. 1455
  3. 1424
    GLM 4.6Similar price
  4. 1409
    Gemini 2.5 FlashNearby rank
  5. 1409
    Hy3 previewNearby rank
  6. 1409
    Qwen3.5-27B
  7. 1408
  8. 1405
    Inkling SmallNearby rank
  9. 1335
    Nova 2 LiteSimilar price
  10. 1326
    Qwen3 30B A3BPredecessor

+82 vs Qwen3 30B A3B (predecessor) · Ahead of 1 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #124

  1. 1479
    MiMo-V2.5-ProSimilar price
  2. 1435
  3. 1358
    Hy3 previewNearby rank
  4. 1357
    Grok 4.3Nearby rank
  5. 1357
    Qwen3.5-27B
  6. 1350
    Laguna M.1Nearby rank
  7. 1342
    GLM 4.6Similar price
  8. 1196
    Devstral 2 2512Similar price

Ahead of 1 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Arena #81

  1. 1266
  2. 1234
    MiMo-V2.5Similar price
  3. 1226
  4. 1216
    MiMo-V2-OmniNearby rank
  5. 1216
    Qwen3.5-27B
  6. 1216
    o3Nearby rank
  7. 1215
    Gemini 2.5 FlashNearby rank
  8. 1160
    Mistral Medium 3.1Similar price
  9. 1153
    GLM 4.5VSimilar price

Ahead of 2 of 4 similarly priced models

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

All published scores

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

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