Hy4 preview launch post cover

Cost/1M tokens

input
$0.7506
cached
$0.0378
output
$2.2509
Context
1Mtokens
Released
2mo ago
Size
780Bparameters

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

Arena #25

  1. 1641
    Grok 4.7Nearby rank
  2. 1638
    MiMo-V2.6-FlashNearby rank
  3. 1632
    Hy4 preview
  4. 1625
    Claude Fable 5Nearby rank
  5. 1624
    MiMo-V2.6-ProNearby rank
  6. 1564
    Mistral Large 4Similar price
  7. 1448
  8. 1436
    Kimi K2.5Similar price
  9. 1435
    GLM 4.7Similar price

Ahead of 4 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

Arena #30

  1. +0.006
    Kimi K3Nearby rank
  2. +0.005
    Claude Haiku 5.5Nearby rank
  3. +0.005
    Hy4 preview
  4. +0.002
    GLM 5.2Nearby rank
  5. +0.001
    Qwen3.8 MaxNearby rank
  6. -0.022
    Gemini 3.7 FlashSimilar price
  7. -0.037
    Step 5 PreviewSimilar price
  8. -0.054
    Mistral Large 4Similar price
  9. -0.156
    Nemotron 3 UltraSimilar price

Ahead of 4 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

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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