DeepSeek V4.1 Flash

DeepSeek
DeepSeek V4.1 Flash launch post cover

Cost/1M tokens

input
$0.30
cached
$0.006
output
$1.20
Context
1Mtokens
Released
2mo ago
Size
763Bparameters

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 #37

  1. 1480
    MiMo-V2.6-ProSimilar price
  2. 1475
    GPT-5.4Nearby rank
  3. 1475
    GLM 5.2Nearby rank
  4. 1475
    DeepSeek V4.1 Flash
  5. 1474
    GLM 5.3 FlashNearby rank
  6. 1474
    GPT-6 AstraNearby rank
  7. 1455
    Qwen3.7 PlusSimilar price
  8. 1436
    MiniMax M3Similar price
  9. 1425
    DeepSeek V3.2Predecessor
  10. 1327
    Llama 4 MaverickSimilar price

+50 vs DeepSeek V3.2 (predecessor) · Ahead of 3 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #30

  1. 1624
    MiMo-V2.6-ProSimilar price
  2. 1624
  3. 1622
    GLM 5.3Nearby rank
  4. 1621
    DeepSeek V4.1 Flash
  5. 1618
    Grok 4.6Nearby rank
  6. 1615
    GPT-5.6 SolNearby rank
  7. 1484
    MiniMax M3Similar price
  8. 1437
    Beam 1.0 501B A23BSimilar price
  9. 1362
    DeepSeek V3.2Predecessor
  10. 1256

+258 vs DeepSeek V3.2 (predecessor) · Ahead of 3 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Arena #42

  1. 1265
    Kimi K2.6Nearby rank
  2. 1263
    Grok 4.6Nearby rank
  3. 1263
    DeepSeek V4.1 Flash
  4. 1263
  5. 1262
    Qwen3.7 PlusSimilar price
  6. 1247
    MiMo-V2.6-ProSimilar price
  7. 1232
    MiniMax M3Similar price
  8. 1145
    Llama 4 MaverickSimilar 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

ARC-AGI-2

Best score per model · Higher is better

#24 of 85

  1. 75.8%
    Claude Opus 4.7Nearby rank
  2. 74.0%
    GPT-5.4Nearby rank
  3. 72.9%
    DeepSeek V4.1 Flash
  4. 72.1%
    Claude Opus 4.8Nearby rank
  5. 72.1%
    Gemini 3.5 FlashNearby rank
  6. 42.4%
    Qwen3.8 27BSimilar price
  7. 5.7%
    GPT-5.4 NanoSimilar price
  8. 4.9%
    MiniMax M2.5Similar price
  9. 4.0%
    DeepSeek V3.2Predecessor
  10. 0.0%
    Llama 4 MaverickSimilar price

+68.9 pts vs DeepSeek V3.2 (predecessor) · Ahead of 4 of 4 similarly priced models

FrontierMath-Tier-4-v2-Private

Best score per model · Higher is better

#38 of 72

  1. 29.3%
    GLM 5.3Similar price
  2. 26.8%
    Claude Opus 4.6Nearby rank
  3. 26.8%
  4. 26.8%
    DeepSeek V4.1 Flash
  5. 26.8%
  6. 26.8%
    Gemini 3.5 FlashNearby rank
  7. 17.1%
    Inkling SmallSimilar price
  8. 12.2%
    GPT-5.4 NanoSimilar price
  9. 0.0%

Ahead of 3 of 4 similarly priced models

FrontierMath-Tiers-1-3-v2-Private

Best score per model · Higher is better

#33 of 87

  1. 68.4%
    Gemini 3.8 FlashNearby rank
  2. 67.4%
    GPT-5.2Nearby rank
  3. 67.4%
    DeepSeek V4.1 Flash
  4. 66.0%
    Claude Opus 4.6Nearby rank
  5. 66.0%
    Grok 4.6Nearby rank
  6. 46.3%
    Inkling SmallSimilar price
  7. 44.9%
    GPT-5.4 NanoSimilar price
  8. 34.4%
    Qwen3.7 PlusSimilar price
  9. 27.7%

Ahead of 4 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#46 of 161

  1. 90.9%
    MiniMax M3Similar price
  2. 90.2%
    GLM 5.3 FlashNearby rank
  3. 89.9%
    GLM 5.1Nearby rank
  4. 89.8%
    DeepSeek V4.1 Flash
  5. 89.6%
    Claude Haiku 5.5Nearby rank
  6. 89.4%
  7. 87.9%
    Qwen3.7 PlusSimilar price
  8. 81.8%
  9. 78.5%
    GPT-5.4 NanoSimilar price

Ahead of 3 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#24 of 158

  1. 98.6%
  2. 98.3%
    Claude Opus 4.8Nearby rank
  3. 98.3%
    DeepSeek V4.1 Flash
  4. 98.3%
    Mistral Large 4Nearby rank
  5. 98.3%
    GPT-5.6 LunaNearby rank
  6. 93.3%
    Qwen3.7 PlusSimilar price
  7. 87.8%
    GPT-5.4 NanoSimilar price
  8. 80.0%
  9. 71.1%
    MiniMax M3Similar price

Ahead of 4 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#47 of 87

  1. 44.1%
    Qwen3.6 PlusNearby rank
  2. 43.2%
    GPT-5.6 TerraNearby rank
  3. 42.9%
    DeepSeek V4.1 Flash
  4. 42.5%
  5. 41.4%
    GPT-6 LunaNearby rank
  6. 41.0%
    GLM 5.3Similar price
  7. 19.1%
    Inkling SmallSimilar price
  8. 15.9%
    Qwen3.6 FlashSimilar price
  9. 11.7%
    GPT-5.4 NanoSimilar 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.

Reasoning effort

ARC-AGI-2

Score by reasoning effort · Higher is better

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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