DeepSeek V4.1 Flash vs GPT-5 Mini
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in 6 of 6 shared categories: General LLM, Reasoning, Science, Long context, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Factuality (best per dollar). Not the overall leader.
GPT-5 Mini
It used to be. Was SOTA in Math.
| Category | DeepSeek V4.1 Flash | GPT-5 Mini |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #128 · #128 in General LLM Margin 87.07482993197279 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #27 · #27 in Reasoning Margin 19.178082191780817 LMArena leaderboard dataset · Oct 13, 2026 | #130 · #130 in Reasoning Margin 89.72602739726028 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #21 · Was SOTA · Math Margin 44.44444444444444 Epoch AI benchmarking hub · Aug 7, 2025 |
| Science | #36 · #36 in Science Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #81 · #81 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Coding › Web dev | #19 · #19 in Coding › Web dev Margin 16.822429906542055 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #32 · #32 in Long context Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 | #146 · #146 in Long context Margin 99.31972789115646 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #21 · #21 in Vision Margin 57.89473684210526 Epoch AI benchmarking hub · Sep 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #22 · #22 in Factuality Margin 17.164179104477626 LMArena leaderboard dataset · Oct 13, 2026 | #110 · #110 in Factuality Margin 82.83582089552239 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #41 · #41 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
DeepSeek V4.1 Flash: $0.23787 per 1M blended tokens.
GPT-5 Mini: $0.6875 per 1M blended tokens.
DeepSeek V4.1 Flash: open weights.
GPT-5 Mini: closed weights.
General LLM: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in General LLM at #29 against #128.
Reasoning: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Reasoning at #27 against #130.
Science: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Science at #36 against #81.
Long context: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Long context at #32 against #146.
Factuality: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Factuality at #22 against #110.
Abstraction (ARC): As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Abstraction (ARC) at #8 against #41.
DeepSeek V4.1 Flash · GPT-5 Mini
DeepSeek V4.1 Flash or GPT-5 Mini?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in 6 of 6 shared categories: General LLM, Reasoning, Science, Long context, Factuality, and Abstraction (ARC).
DeepSeek V4.1 Flash or GPT-5 Mini for General LLM?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in General LLM at #29 against #128.
DeepSeek V4.1 Flash or GPT-5 Mini for Reasoning?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Reasoning at #27 against #130.
DeepSeek V4.1 Flash or GPT-5 Mini for Science?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5 Mini in Science at #36 against #81.