Compare · 2026-10-14

DeepSeek V4 Flash High Preview vs GPT-5.4

As of Oct 14, 2026, DeepSeek V4 Flash High Preview leads GPT-5.4 in 0 of 5 shared categories.

CategoryDeepSeek V4 Flash High PreviewGPT-5.4
General LLM
#71 · #71 in General LLM
Margin 48.29931972789116
LMArena leaderboard dataset · Oct 13, 2026
#28 · Was SOTA · General LLM
Margin 19.04761904761905
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#74 · #74 in Reasoning
Margin 51.36986301369863
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
#65 · #65 in Coding › Web dev
Margin 59.81308411214953
LMArena leaderboard dataset · Oct 13, 2026
#55 · #55 in Coding › Web dev
Margin 50.467289719626166
LMArena leaderboard dataset · Oct 13, 2026
Long context
#68 · #68 in Long context
Margin 46.25850340136054
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
#77 · #77 in Factuality
Margin 58.208955223880594
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
Price per 1M tokens

DeepSeek V4 Flash High Preview: price per 1M tokens is unset in the catalog.

GPT-5.4: $5.625 per 1M blended tokens.

Open weights

DeepSeek V4 Flash High Preview: open weights.

GPT-5.4: closed weights.

Which to pick

General LLM: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in General LLM at #28 against #71.

Reasoning: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Reasoning at #29 against #74.

Coding › Web dev: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #55 against #65.

Long context: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Long context at #34 against #68.

Factuality: As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Factuality at #6 against #77.

DeepSeek V4 Flash High Preview · GPT-5.4

DeepSeek V4 Flash High Preview or GPT-5.4?

As of Oct 14, 2026, DeepSeek V4 Flash High Preview leads GPT-5.4 in 0 of 5 shared categories.

DeepSeek V4 Flash High Preview or GPT-5.4 for General LLM?

As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in General LLM at #28 against #71.

DeepSeek V4 Flash High Preview or GPT-5.4 for Reasoning?

As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Reasoning at #29 against #74.

DeepSeek V4 Flash High Preview or GPT-5.4 for Coding › Web dev?

As of Oct 14, 2026, GPT-5.4 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #55 against #65.