R1 0528 launch post cover

Cost/1M tokens

input
$0.50
cached
$0.35
output
$2.15
Context
164Ktokens
Released
1y ago
Size
685Bparameters

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 #134

  1. 1455
  2. 1422
    Claude Haiku 5.5Nearby rank
  3. 1422
  4. 1421
    R1 0528
  5. 1418
  6. 1417
    DeepSeek V3.1Nearby rank
  7. 1409
    Qwen3.5-27BSimilar price
  8. 1352
    GLM 4.5VSimilar price
  9. 1335
    Nova 2 LiteSimilar price

Ahead of 3 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Not ranked on Arena WebDev 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

ARC-AGI-2

Best score per model · Higher is better

#75 of 85

  1. 40.1%
    Inkling SmallSimilar price
  2. 11.8%
    Kimi K2.5Similar price
  3. 10.3%
  4. 1.3%
  5. 1.3%
  6. 1.1%
    R1 0528
  7. 0.9%
  8. 0.4%
    GPT-4.1Nearby rank
  9. 0.0%
    GPT-4.1 MiniSimilar price

Ahead of 1 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#96 of 161

  1. 85.9%
    Qwen3.6 27BSimilar price
  2. 83.3%
  3. 83.3%
    GLM 4.7Similar price
  4. 77.6%
    Seed 1.6Nearby rank
  5. 77.3%
    Claude Opus 4.1Nearby rank
  6. 76.3%
    R1 0528
  7. 76.3%
    Claude Opus 4Nearby rank
  8. 75.8%
    Gemma 4 31BNearby rank
  9. 59.5%
    Mistral Medium 3Similar price

Ahead of 1 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#106 of 158

  1. 91.1%
    Qwen3.6 27BSimilar price
  2. 83.3%
    GLM 4.7Similar price
  3. 71.1%
  4. 66.9%
    Qwen3 32BNearby rank
  5. 66.7%
    Claude Haiku 4.5Nearby rank
  6. 66.4%
    R1 0528
  7. 66.4%
    Qwen3 14BNearby rank
  8. 65.3%
    gpt-oss-20bNearby rank
  9. 32.2%
    Mistral Medium 3Similar price

Ahead of 1 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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