GPT-5.1 launch post cover

Cost/1M tokens

input
$1.25
cached
$0.125
output
$10.00
Context
400Ktokens
Released
12mo 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 #71

  1. 1472
    Claude Sonnet 5.5Similar price
  2. 1466
    Grok 4.5Similar price
  3. 1456
    Grok 4.6Nearby rank
  4. 1456
  5. 1455
    GPT-5.1
  6. 1455
    Qwen3.7 PlusNearby rank
  7. 1455
  8. 1446
    Gemini 2.5 ProSimilar price
  9. 1435
    GPT-5Predecessor
  10. 1427
    Mistral Medium 3.5Similar price

+21 vs GPT-5 (predecessor) · Ahead of 2 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Arena #108

  1. 1676
    Qwen3.8 Max (0902)Similar price
  2. 1641
    Grok 4.7Similar price
  3. 1417
    GPT-5Predecessor
  4. 1398
    MiniMax M2.7Nearby rank
  5. 1398
    GPT-5.4 MiniNearby rank
  6. 1397
    GPT-5.1
  7. 1393
  8. 1389
    Claude Opus 4.1Nearby rank
  9. 1263
    Mistral Medium 3.5Similar price
  10. 1228
    Gemini 2.5 ProSimilar price

Level with GPT-5 (predecessor, overlapping 95% CIs) · Ahead of 2 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Arena #52

  1. 1280
    Grok 4.5Similar price
  2. 1263
    Claude Sonnet 5.5Similar price
  3. 1255
    GPT-5.6 LunaNearby rank
  4. 1252
    Kimi K2.5Nearby rank
  5. 1251
    GPT-5.1
  6. 1250
    GPT-5.4 MiniNearby rank
  7. 1249
    Grok 4.7Nearby rank
  8. 1247
    Gemini 2.5 ProSimilar price
  9. 1211
    GPT-5Predecessor
  10. 1199
    Mistral Medium 3.5Similar price

+40 vs GPT-5 (predecessor) · Ahead of 1 of 4 similarly priced models

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Arena Document

Best Arena rating per model · Higher is better

Arena #45

  1. 1480
    Muse Spark 1.1Similar price
  2. 1469
    Claude Sonnet 5Similar price
  3. 1466
    Grok 4.5Similar price
  4. 1433
    Gemini 2.5 ProSimilar price
  5. 1425
    GPT-5.2Nearby rank
  6. 1419
    Claude Haiku 4.5Nearby rank
  7. 1416
    GPT-5.1
  8. 1406
    GLM 5V TurboNearby rank

Ahead of 0 of 4 similarly priced models

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

#52 of 85

  1. 83.9%
    Claude Sonnet 5.5Similar price
  2. 67.1%
    Grok 4.6Similar price
  3. 60.4%
    Kimi K3Similar price
  4. 18.9%
    GPT-5.4 MiniNearby rank
  5. 18.3%
    GPT-5 ProNearby rank
  6. 17.6%
    GPT-5.1
  7. 13.6%
  8. 11.8%
    Kimi K2.5Nearby rank
  9. 9.9%
    GPT-5Predecessor
  10. 4.9%
    Gemini 2.5 ProSimilar price

+7.8 pts vs GPT-5 (predecessor) · Ahead of 1 of 4 similarly priced models

FrontierMath-2025-02-28-Private

Best score per model · Higher is better

#15 of 58

  1. 33.4%
    GLM 5.1Similar price
  2. 32.4%
    GPT-5Predecessor
  3. 32.4%
  4. 31.0%
    GPT-5.1
  5. 28.3%
    GPT-5.4 MiniNearby rank
  6. 27.2%
    GPT-5 MiniNearby rank
  7. 14.1%
    Gemini 2.5 ProSimilar price
  8. 10.3%
  9. 5.9%
    Claude Haiku 4.5Similar price

-1.4 pts vs GPT-5 (predecessor) · Ahead of 3 of 4 similarly priced models

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

Best score per model · Higher is better

#11 of 46

  1. 14.6%
    Kimi K2.6Nearby rank
  2. 12.5%
    GPT-5Predecessor
  3. 12.5%
    GPT-5.1
  4. 12.5%
    GLM 5.1Similar price
  5. 8.3%
    Qwen3.6 PlusNearby rank
  6. 4.2%
    Gemini 2.5 ProSimilar price
  7. 2.1%
    Claude Haiku 4.5Similar price
  8. 2.1%

Level with GPT-5 (predecessor) · Ahead of 3 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#58 of 161

  1. 94.0%
    Grok 4.6Similar price
  2. 92.3%
    Qwen3.8 Max (0902)Similar price
  3. 87.9%
    Qwen3.7 PlusNearby rank
  4. 87.8%
    GLM 5Nearby rank
  5. 87.6%
    GPT-5.1
  6. 87.4%
  7. 87.4%
  8. 86.2%
    GPT-5Predecessor
  9. 85.3%
    Gemini 2.5 ProSimilar price
  10. 49.0%
    Mistral Large 2407Similar price

+1.5 pts vs GPT-5 (predecessor) · Ahead of 2 of 4 similarly priced models

Humanity's Last Exam

Best score per model · Higher is better

#16 of 34

  1. 46.4%
  2. 46.1%
    Claude Sonnet 5.5Similar price
  3. 25.3%
    GPT-5Predecessor
  4. 24.4%
    Kimi K2.5Nearby rank
  5. 23.7%
    GPT-5.1
  6. 21.6%
  7. 20.3%
    o3Nearby rank
  8. 7.5%
    Claude Sonnet 4.5Similar price

-1.6 pts vs GPT-5 (predecessor) · Ahead of 2 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#63 of 158

  1. 100.0%
    Qwen3.8 Max (0902)Similar price
  2. 99.2%
    Grok 4.6Similar price
  3. 91.4%
    GPT-5Predecessor
  4. 88.9%
  5. 88.9%
    InklingNearby rank
  6. 88.6%
    GPT-5.1
  7. 87.8%
  8. 87.8%
    GPT-5.4 NanoNearby rank
  9. 84.7%
    Gemini 2.5 ProSimilar price
  10. 8.5%
    Mistral Large 2407Similar price

-2.8 pts vs GPT-5 (predecessor) · Ahead of 2 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#35 of 87

  1. 66.2%
    Gemini 3.5 FlashSimilar price
  2. 56.0%
    Grok 4.7Similar price
  3. 50.1%
    GPT-5Predecessor
  4. 48.7%
    Qwen3 MaxNearby rank
  5. 48.3%
    Grok 4.5Nearby rank
  6. 48.0%
    GPT-5.1
  7. 47.3%
    Qwen3.8 Max (0902)Similar price
  8. 47.0%
    Claude Opus 4.6Nearby rank
  9. 46.5%
    Claude Sonnet 5.5Similar price

-2.1 pts vs GPT-5 (predecessor) · Ahead of 2 of 4 similarly priced models

SWE-bench Verified

Best score per model · Higher is better

#28 of 35

  1. 77.3%
    Qwen3.7 MaxSimilar price
  2. 75.2%
    Claude Sonnet 4.6Similar price
  3. 74.2%
    GLM 5.1Similar price
  4. 73.6%
    GPT-5Predecessor
  5. 71.3%
  6. 70.7%
    Claude Opus 4Nearby rank
  7. 65.9%
    GPT-5.1
  8. 64.7%
    GPT-5 MiniNearby rank
  9. 62.3%
    o3Nearby rank
  10. 57.6%
    Gemini 2.5 ProSimilar price

-7.6 pts vs GPT-5 (predecessor) · Ahead of 1 of 4 similarly priced models

Terminal Bench

Best score per model · Higher is better

#20 of 49

  1. 80.2%
  2. 53.4%
    Claude Sonnet 4.6Similar price
  3. 52.4%
    GLM 5Nearby rank
  4. 49.6%
    GPT-5Predecessor
  5. 47.6%
    GPT-5.1
  6. 46.5%
  7. 45.1%
    MiniMax M2.7Nearby rank
  8. 35.5%
    Claude Haiku 4.5Similar price
  9. 32.6%
    Gemini 2.5 ProSimilar price

-2.0 pts vs GPT-5 (predecessor) · 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.

Reasoning effort

ARC-AGI-2

Score by reasoning effort · Higher is better

FrontierMath-2025-02-28-Private

Score by reasoning effort · Higher is better

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

Score by reasoning effort · Higher is better

GPQA diamond

Score by reasoning effort · Higher is better

Humanity's Last Exam

Score by reasoning effort · Higher is better

OTIS Mock AIME 2024-2025

Score by reasoning effort · Higher is better

Terminal Bench

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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