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Compare · 2026-10-15

GPT-4 Turbo vs GPT-5

As of Oct 15, 2026, GPT-4 Turbo leads GPT-5 in 1 of 2 shared categories: General LLM.

CategoryGPT-4 TurboGPT-5
General LLM
#11 · #11 in General LLM
Margin —
LMArena leaderboard dataset · Oct 23, 2024
#95 · Was SOTA · General LLM
Margin 50.53191489361702
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#— · Not enough data
Margin —
LMArena leaderboard dataset · Sep 4, 2024
#103 · Was SOTA · Reasoning
Margin 55.319148936170215
LMArena leaderboard dataset · Oct 13, 2026
Math—
#15 · Was SOTA · Math
Margin 31.111111111111114
Epoch AI benchmarking hub · Aug 7, 2025
Science
#139 · #139 in Science
Margin —
Epoch AI benchmarking hub · Apr 9, 2024
#54 · #54 in Science
Margin —
Epoch AI benchmarking hub · Aug 7, 2025
Coding
#— · Not enough data
Margin —
LMArena leaderboard dataset · Sep 15, 2024
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Web dev—
#72 · #72 in Coding › Web dev
Margin 56.8
LMArena leaderboard dataset · Oct 13, 2026
Long context—
#142 · Was SOTA · Long context
Margin 75.53191489361703
LMArena leaderboard dataset · Oct 13, 2026
Vision
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 9, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 9, 2026
Factuality—
#119 · #119 in Factuality
Margin 69.76744186046511
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)—
#34 · #34 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Aug 7, 2025
Price per 1M tokens

GPT-4 Turbo: $15.000000000000002 per 1M blended tokens.

GPT-5: $3.4375000000000004 per 1M blended tokens.

Open weights

GPT-4 Turbo: closed weights.

GPT-5: closed weights.

Which to pick

General LLM: As of Oct 15, 2026, GPT-4 Turbo leads GPT-5 in General LLM at #11 against #95.

Science: As of Oct 15, 2026, GPT-5 leads GPT-4 Turbo in Science at #54 against #139.

GPT-4 Turbo · GPT-5

GPT-4 Turbo or GPT-5?

As of Oct 15, 2026, GPT-4 Turbo leads GPT-5 in 1 of 2 shared categories: General LLM.

GPT-4 Turbo or GPT-5 for General LLM?

As of Oct 15, 2026, GPT-4 Turbo leads GPT-5 in General LLM at #11 against #95.

GPT-4 Turbo or GPT-5 for Science?

As of Oct 15, 2026, GPT-5 leads GPT-4 Turbo in Science at #54 against #139.