DeepSeek V4 Flash vs GPT-5.4
As of Oct 14, 2026, DeepSeek V4 Flash leads GPT-5.4 in 1 of 5 shared categories: Coding › Web dev.
DeepSeek V4 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | DeepSeek V4 Flash | GPT-5.4 |
|---|---|---|
| General LLM | #75 · #75 in General LLM Margin 51.02040816326531 LMArena leaderboard dataset · Oct 13, 2026 | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #72 · #72 in Reasoning Margin 50 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 | — | #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 | #30 · #30 in Coding › Web dev Margin 27.10280373831776 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #69 · #69 in Long context Margin 46.93877551020408 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Long context Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #66 · #66 in Factuality Margin 50 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
DeepSeek V4 Flash: $0.11374999999999999 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
DeepSeek V4 Flash: open weights.
GPT-5.4: closed weights.
General LLM: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in General LLM at #28 against #75.
Reasoning: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in Reasoning at #29 against #72.
Coding › Web dev: As of Oct 14, 2026, DeepSeek V4 Flash leads GPT-5.4 in Coding › Web dev at #30 against #55.
Long context: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in Long context at #34 against #69.
Factuality: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in Factuality at #6 against #66.
DeepSeek V4 Flash or GPT-5.4?
As of Oct 14, 2026, DeepSeek V4 Flash leads GPT-5.4 in 1 of 5 shared categories: Coding › Web dev.
DeepSeek V4 Flash or GPT-5.4 for General LLM?
As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in General LLM at #28 against #75.
DeepSeek V4 Flash or GPT-5.4 for Reasoning?
As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash in Reasoning at #29 against #72.
DeepSeek V4 Flash or GPT-5.4 for Coding › Web dev?
As of Oct 14, 2026, DeepSeek V4 Flash leads GPT-5.4 in Coding › Web dev at #30 against #55.