Qwen3.5 Plus

Alibaba
Qwen3.5 Plus cover image
Context
1Mtokens
Released
8mo ago

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

Not ranked on Arena Text yet

Arena WebDev

Best Arena rating per model · Higher is better

Not ranked on Arena WebDev yet

Arena Vision

Best Arena rating per model · Higher is better

Not ranked on Arena Vision yet

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

FrontierMath-2025-02-28-Private

Best score per model · Higher is better

#23 of 58

  1. 36.9%
    Gemini 3.1 Pro PreviewSimilar release date
  2. 32.4%
    Claude Sonnet 4.6Similar release date
  3. 23.1%
  4. 21.4%
    Kimi K2 ThinkingNearby rank
  5. 21.0%
    Qwen3.5 Plus
  6. 20.7%
    Claude Opus 4.5Nearby rank
  7. 18.7%
    o3Nearby rank
  8. 16.4%
    GLM 5Similar release date
  9. 6.2%
    Qwen3.5-FlashSimilar release date

Ahead of 2 of 4 models released around the same time

FrontierMath-Tier-4-2025-07-01-Private

Best score per model · Higher is better

#32 of 46

  1. 16.7%
    Gemini 3.1 Pro PreviewSimilar release date
  2. 8.3%
    Claude Sonnet 4.6Similar release date
  3. 2.1%
    GLM 4.6Nearby rank
  4. 2.1%
    GLM 5Similar release date
  5. 2.1%
    Qwen3.5 Plus
  6. 2.1%
    Claude Haiku 4.5Nearby rank
  7. 2.1%
  8. 0.0%
    Qwen3.5-FlashSimilar release date

Ahead of 1 of 4 models released around the same time

GPQA diamond

Best score per model · Higher is better

#71 of 161

  1. 94.4%
    Gemini 3.1 Pro PreviewSimilar release date
  2. 87.8%
    GLM 5Similar release date
  3. 87.4%
    Claude Sonnet 4.6Similar release date
  4. 86.4%
    Qwen3.5 397B A17BSimilar release date
  5. 85.4%
    Nemotron 3 UltraNearby rank
  6. 85.3%
    Gemini 2.5 ProNearby rank
  7. 84.8%
    Qwen3.5 Plus
  8. 84.8%
  9. 84.8%
    Qwen3.6 35B A3BNearby rank
  10. 56.8%
    Qwen3 8BPredecessor

+28.1 pts vs Qwen3 8B (predecessor) · Ahead of 0 of 4 models released around the same time

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#66 of 158

  1. 95.6%
    Gemini 3.1 Pro PreviewSimilar release date
  2. 88.9%
    Qwen3.5 397B A17BSimilar release date
  3. 87.8%
  4. 87.8%
    GPT-5.4 NanoNearby rank
  5. 86.7%
    Qwen3.5 Plus
  6. 86.7%
    Nemotron 3 UltraNearby rank
  7. 86.7%
    GPT-5 MiniNearby rank
  8. 85.8%
    Claude Sonnet 4.6Similar release date
  9. 80.0%
    GLM 5Similar release date
  10. 56.1%
    Qwen3 8BPredecessor

+30.6 pts vs Qwen3 8B (predecessor) · Ahead of 2 of 4 models released around the same time

SimpleQA Verified

Best score per model · Higher is better

#71 of 87

  1. 73.5%
    Gemini 3.1 Pro PreviewSimilar release date
  2. 46.3%
    GPT-5.4 ProSimilar release date
  3. 35.5%
    Claude Sonnet 4.6Similar release date
  4. 29.4%
    GPT-5.4 MiniNearby rank
  5. 26.0%
  6. 25.4%
    Qwen3.5 Plus
  7. 23.8%
    Claude Haiku 5.5Nearby rank
  8. 21.6%
    GPT-5 MiniNearby rank
  9. 20.3%
    Qwen3.5-FlashSimilar release date

Ahead of 1 of 4 models released around the same time

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

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

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