DeepSeek V4.1 Flash vs GPT-5.4
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in 4 of 7 shared categories: Reasoning, Coding › Web dev, Long context, and Abstraction (ARC).
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Factuality (best per dollar). Not the overall leader.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | DeepSeek V4.1 Flash | GPT-5.4 |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #27 · #27 in Reasoning Margin 19.178082191780817 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #36 · #36 in Science Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding › Web dev | #19 · #19 in Coding › Web dev Margin 16.822429906542055 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #32 · #32 in Long context Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Long context Margin 23.12925170068027 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 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
DeepSeek V4.1 Flash: $0.23787 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
DeepSeek V4.1 Flash: open weights.
GPT-5.4: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4.1 Flash in General LLM at #28 against #29.
Reasoning: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in Reasoning at #27 against #29.
Science: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4.1 Flash in Science at #16 against #36.
Coding › Web dev: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in Coding › Web dev at #19 against #55.
Long context: As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in Long context at #32 against #34.
Factuality: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4.1 Flash in Factuality at #6 against #22.
Abstraction (ARC): As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in Abstraction (ARC) at #8 against #10.
DeepSeek V4.1 Flash or GPT-5.4?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in 4 of 7 shared categories: Reasoning, Coding › Web dev, Long context, and Abstraction (ARC).
DeepSeek V4.1 Flash or GPT-5.4 for General LLM?
As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4.1 Flash in General LLM at #28 against #29.
DeepSeek V4.1 Flash or GPT-5.4 for Reasoning?
As of Oct 14, 2026, DeepSeek V4.1 Flash leads GPT-5.4 in Reasoning at #27 against #29.
DeepSeek V4.1 Flash or GPT-5.4 for Science?
As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4.1 Flash in Science at #16 against #36.