GPT-5 Mini launch post cover

Cost/1M tokens

input
$0.25
cached
$0.025
output
$2.00
Context
400Ktokens
Released
1y 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 #182

  1. 1416
    Qwen3.5-122B-A10BSimilar price
  2. 1405
    Inkling SmallSimilar price
  3. 1392
    MiMo-V2-FlashNearby rank
  4. 1391
    MiniMax M2.5Nearby rank
  5. 1390
    GPT-5 Mini
  6. 1388
  7. 1387
    Solar Pro 4Nearby rank
  8. 1383
    GPT-4.1 MiniPredecessor
  9. 1318
  10. 1290
    Gemma 2 27BSimilar price

Level with GPT-4.1 Mini (predecessor, overlapping 95% CIs) · Ahead of 2 of 4 similarly priced models

Arena WebDev

Best Arena rating per model · Higher is better

Not ranked on Arena WebDev yet

Arena Vision

Best Arena rating per model · Higher is better

Arena #103

  1. 1234
    MiMo-V2.5Similar price
  2. 1226
    Qwen3.5-122B-A10BSimilar price
  3. 1208
    Inkling SmallSimilar price
  4. 1201
    GPT-4.1 MiniPredecessor
  5. 1200
  6. 1189
  7. 1188
  8. 1185
    GPT-5 Mini
  9. 1174
  10. 1172
    Gemini 2.0 FlashNearby rank

-16 vs GPT-4.1 Mini (predecessor) · Ahead of 0 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

Not ranked on Arena Document 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

#66 of 85

  1. 72.9%
    DeepSeek V4.1 FlashSimilar price
  2. 42.4%
    Qwen3.8 27BSimilar price
  3. 40.1%
    Inkling SmallSimilar price
  4. 10.3%
  5. 4.9%
    o3 ProNearby rank
  6. 4.9%
    GLM 5Nearby rank
  7. 4.4%
    GPT-5 Mini
  8. 4.0%
    Claude Haiku 4.5Nearby rank
  9. 4.0%
    DeepSeek V3.2Nearby rank
  10. 0.0%
    GPT-4.1 MiniPredecessor

+4.4 pts vs GPT-4.1 Mini (predecessor) · Ahead of 0 of 4 similarly priced models

FrontierMath-2025-02-28-Private

Best score per model · Higher is better

#17 of 58

  1. 31.0%
    GPT-5.1Nearby rank
  2. 28.3%
    GPT-5.4 MiniNearby rank
  3. 27.2%
    GPT-5 Mini
  4. 26.2%
    Qwen3.6 PlusSimilar price
  5. 25.9%
    GPT-5.4 NanoNearby rank
  6. 4.8%
    Gemini 2.5 FlashSimilar price
  7. 4.5%
    GPT-4.1 MiniPredecessor
  8. 3.8%
    GLM 4.6Similar price
  9. 0.3%
    Mistral Medium 3Similar price

+22.8 pts vs GPT-4.1 Mini (predecessor) · Ahead of 4 of 4 similarly priced models

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

Best score per model · Higher is better

#16 of 46

  1. 8.3%
    Qwen3.6 PlusSimilar price
  2. 8.3%
  3. 6.3%
    GPT-5 Mini
  4. 6.3%
    GPT-5.4 NanoNearby rank
  5. 4.2%
  6. 4.2%
    Gemini 2.5 FlashSimilar price
  7. 2.1%
    GLM 4.6Similar price
  8. 0.0%
    Kimi K2 ThinkingSimilar price

Ahead of 3 of 4 similarly priced models

FrontierMath-Tier-4-v2-Private

Best score per model · Higher is better

#57 of 72

  1. 26.8%
    DeepSeek V4.1 FlashSimilar price
  2. 26.8%
    Mistral Large 4Similar price
  3. 17.1%
    Inkling SmallSimilar price
  4. 14.6%
    Grok 4.3Nearby rank
  5. 12.2%
    Kimi K2.7 CodeNearby rank
  6. 12.2%
    GPT-5 Mini
  7. 12.2%
    GPT-5.4 NanoNearby rank
  8. 9.8%
    GPT-5.4 MiniNearby rank
  9. 0.0%

Ahead of 1 of 4 similarly priced models

FrontierMath-Tiers-1-3-v2-Private

Best score per model · Higher is better

#55 of 87

  1. 67.4%
    DeepSeek V4.1 FlashSimilar price
  2. 51.2%
  3. 51.2%
    GPT-5.4 MiniNearby rank
  4. 46.7%
    GPT-5 Mini
  5. 46.3%
    Inkling SmallSimilar price
  6. 45.3%
  7. 38.2%
    Qwen3.6 PlusSimilar price
  8. 27.7%
  9. 6.7%
    GPT-4.1 MiniPredecessor

+40.0 pts vs GPT-4.1 Mini (predecessor) · Ahead of 3 of 4 similarly priced models

GPQA diamond

Best score per model · Higher is better

#100 of 161

  1. 88.5%
    Inkling SmallSimilar price
  2. 88.4%
    Qwen3.6 PlusSimilar price
  3. 75.8%
    Gemma 4 31BNearby rank
  4. 75.8%
    gpt-oss-120bNearby rank
  5. 75.0%
    GPT-5 Mini
  6. 73.2%
    Gemma 4 26B A4BNearby rank
  7. 72.6%
    Qwen3 MaxNearby rank
  8. 65.8%
    GPT-4.1 MiniPredecessor
  9. 47.4%
  10. 36.5%
    Gemma 2 27BSimilar price

+9.2 pts vs GPT-4.1 Mini (predecessor) · Ahead of 2 of 4 similarly priced models

Humanity's Last Exam

Best score per model · Higher is better

#19 of 34

  1. 24.4%
    Kimi K2.5Similar price
  2. 21.6%
  3. 20.3%
    o3Nearby rank
  4. 19.4%
    GPT-5 Mini
  5. 14.2%
    Claude Opus 4.5Nearby rank
  6. 11.0%
  7. 8.6%
  8. 5.7%
    Llama 4 MaverickSimilar price
  9. 4.5%
    Mistral Medium 3Similar price

Ahead of 3 of 4 similarly priced models

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#66 of 158

  1. 93.3%
    Qwen3.6 PlusSimilar price
  2. 90.0%
    Inkling SmallSimilar price
  3. 86.7%
    Qwen3.5 PlusNearby rank
  4. 86.7%
    Nemotron 3 UltraNearby rank
  5. 86.7%
    GPT-5 Mini
  6. 86.7%
  7. 86.7%
    Qwen3.6 35B A3BNearby rank
  8. 44.7%
    GPT-4.1 MiniPredecessor
  9. 5.1%
  10. 1.4%
    Gemma 2 27BSimilar price

+41.9 pts vs GPT-4.1 Mini (predecessor) · Ahead of 2 of 4 similarly priced models

SimpleQA Verified

Best score per model · Higher is better

#73 of 87

  1. 44.1%
    Qwen3.6 PlusSimilar price
  2. 42.9%
    DeepSeek V4.1 FlashSimilar price
  3. 34.3%
    Kimi K2.5Similar price
  4. 25.4%
    Qwen3.5 PlusNearby rank
  5. 23.8%
    Claude Haiku 5.5Nearby rank
  6. 21.6%
    GPT-5 Mini
  7. 20.3%
    Qwen3.5-FlashNearby rank
  8. 20.0%
    Mistral Large 4Nearby rank
  9. 19.1%
    Inkling SmallSimilar price
  10. 12.7%
    GPT-4.1 MiniPredecessor

+8.9 pts vs GPT-4.1 Mini (predecessor) · Ahead of 1 of 4 similarly priced models

SWE-bench Verified

Best score per model · Higher is better

#29 of 35

  1. 77.6%
  2. 75.4%
  3. 73.8%
    Kimi K2.5Similar price
  4. 70.7%
    Claude Opus 4Nearby rank
  5. 65.9%
    GPT-5.1Nearby rank
  6. 64.7%
    GPT-5 Mini
  7. 62.3%
    o3Nearby rank
  8. 61.0%
  9. 57.9%
    Qwen3.6 PlusSimilar price

Ahead of 1 of 4 similarly priced models

Terminal Bench

Best score per model · Higher is better

#35 of 49

  1. 43.2%
    Kimi K2.5Similar price
  2. 42.7%
    MiniMax M2.5Similar price
  3. 35.7%
    Kimi K2 ThinkingNearby rank
  4. 35.5%
    Claude Haiku 4.5Nearby rank
  5. 34.8%
    GPT-5 Mini
  6. 33.4%
    GLM 4.7Nearby rank
  7. 32.6%
    Gemini 2.5 ProNearby rank
  8. 24.5%
    GLM 4.6Similar price
  9. 17.1%
    Gemini 2.5 FlashSimilar 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.

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

FrontierMath-Tiers-1-3-v2-Private

Score by reasoning effort · Higher is better

GPQA diamond

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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