Qwen3.5-Flash

Qwen
Qwen3.5-Flash cover image

Cost/1M tokens

input
$0.065
output
$0.26
Context
1Mtokens
Listed
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

Arena #171

  1. 1436
  2. 1402
    Qwen3 235B-A22BEarlier version
  3. 1400
  4. 1399
  5. 1396
    Qwen3.5-Flash
  6. 1395
    DeepSeek V3 0324Nearby rank
  7. 1395
  8. 1314
  9. 1260
    Nova Lite 1.0Similar price
  10. 1167

Level with Qwen3 235B-A22B (earlier version, overlapping 95% CIs) · Ahead of 3 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #145

  1. 1585
    MiniMax M3.1 FlashSimilar price
  2. 1582
  3. 1506
    Hy3Similar price
  4. 1358
    Gemma 4 26B A4BSimilar price
  5. 1253
    Qwen3.5-35B-A3BNearby rank
  6. 1245
  7. 1244
    Qwen3.5-Flash
  8. 1242
  9. 1233

Ahead of 0 of 4 similarly priced models

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

#37 of 58

  1. 8.3%
    GPT-5 NanoSimilar price
  2. 7.2%
    Claude Opus 4.1Nearby rank
  3. 6.2%
    Qwen3.5-Flash
  4. 5.9%
    Claude Haiku 4.5Nearby rank
  5. 5.5%
    GPT-4.1Nearby rank
  6. 1.0%
    GPT-4.1 NanoSimilar price
  7. 0.0%
    Llama 4 ScoutSimilar price

Ahead of 2 of 3 similarly priced models

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

Best score per model · Higher is better

#39 of 46

  1. 2.1%
    GPT-5 NanoSimilar price
  2. 0.0%
    GPT-4.1Nearby rank
  3. 0.0%
  4. 0.0%
    Qwen3.5-Flash
  5. 0.0%
    Qwen3.6 FlashNearby rank
  6. 0.0%
    GLM 4.7Nearby rank

Ahead of 0 of 1 similarly priced model

FrontierMath-Tiers-1-3-v2-Private

Best score per model · Higher is better

#81 of 87

  1. 78.9%
    GPT-6 LunaSimilar price
  2. 75.1%
    Claude Haiku 5.5Similar price
  3. 57.5%
  4. 20.0%
    GPT-5 NanoSimilar price
  5. 19.3%
    Qwen3.7 FlashNearby rank
  6. 18.9%
    Qwen3 MaxNearby rank
  7. 18.2%
    Qwen3.5-Flash
  8. 12.6%
    Claude Opus 4.1Nearby rank
  9. 6.7%
    GPT-4.1 MiniNearby rank

Ahead of 0 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#81 of 161

  1. 91.0%
  2. 82.5%
    GPT-5.5 InstantNearby rank
  3. 82.3%
  4. 82.3%
    Qwen3.5-Flash
  5. 82.3%
    Qwen3.7 FlashNearby rank
  6. 81.8%
  7. 73.2%
    Gemma 4 26B A4BSimilar price
  8. 69.4%
    GPT-5 NanoSimilar price
  9. 60.5%
    GLM 4.7 FlashSimilar price
  10. 56.8%
    Qwen3 8BPredecessor

+25.6 pts vs Qwen3 8B (predecessor) · Ahead of 3 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#77 of 158

  1. 94.4%
  2. 84.4%
    GPT-5.5Nearby rank
  3. 84.4%
    o3Nearby rank
  4. 84.4%
    Qwen3.5-Flash
  5. 84.4%
    Qwen3.6 FlashNearby rank
  6. 83.3%
    GLM 4.7Nearby rank
  7. 82.2%
    Gemma 4 26B A4BSimilar price
  8. 81.1%
    GPT-5 NanoSimilar price
  9. 58.3%
    GLM 4.7 FlashSimilar price
  10. 56.1%
    Qwen3 8BPredecessor

+28.3 pts vs Qwen3 8B (predecessor) · Ahead of 3 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#74 of 87

  1. 33.6%
  2. 23.8%
    Claude Haiku 5.5Similar price
  3. 21.6%
    GPT-5 MiniNearby rank
  4. 20.3%
    Qwen3.5-Flash
  5. 20.0%
    Mistral Large 4Nearby rank
  6. 19.1%
    Inkling SmallNearby rank
  7. 11.7%
    GPT-5 NanoSimilar price
  8. 6.0%
    GPT-4.1 NanoSimilar price

Ahead of 2 of 4 similarly priced models

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.

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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