Compare · 2026-10-14

Claude 3 Opus vs GPT-4.5 Preview

As of Oct 14, 2026, Claude 3 Opus leads GPT-4.5 Preview in 1 of 2 shared categories: General LLM.

CategoryClaude 3 OpusGPT-4.5 Preview
General LLM
#9 · #9 in General LLM
Margin —
LMArena leaderboard dataset · Sep 27, 2024
#62 · Was SOTA · General LLM
Margin 42.17687074829932
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 7, 2024
#93 · Was SOTA · Reasoning
Margin 64.38356164383562
LMArena leaderboard dataset · Oct 13, 2026
Math—
#38 · #38 in Math
Margin 84.44444444444444
Epoch AI benchmarking hub · Feb 27, 2025
Science
#138 · #138 in Science
Margin —
Epoch AI benchmarking hub · Feb 29, 2024
#92 · #92 in Science
Margin —
Epoch AI benchmarking hub · Feb 27, 2025
Coding—
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Long context—
#76 · Was SOTA · Long context
Margin 51.70068027210884
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
#— · Not enough data
Margin —
Epoch AI benchmarking hub · Feb 29, 2024
—
Abstraction (ARC)—
#83 · #83 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Feb 27, 2025
Price per 1M tokens

Claude 3 Opus: price per 1M tokens is unset in the catalog.

GPT-4.5 Preview: price per 1M tokens is unset in the catalog.

Open weights

Claude 3 Opus: closed weights.

GPT-4.5 Preview: closed weights.

Which to pick

General LLM: As of Oct 14, 2026, Claude 3 Opus leads GPT-4.5 Preview in General LLM at #9 against #62.

Science: As of Oct 14, 2026, GPT-4.5 Preview leads Claude 3 Opus in Science at #92 against #138.

Claude 3 Opus · GPT-4.5 Preview

Claude 3 Opus or GPT-4.5 Preview?

As of Oct 14, 2026, Claude 3 Opus leads GPT-4.5 Preview in 1 of 2 shared categories: General LLM.

Claude 3 Opus or GPT-4.5 Preview for General LLM?

As of Oct 14, 2026, Claude 3 Opus leads GPT-4.5 Preview in General LLM at #9 against #62.

Claude 3 Opus or GPT-4.5 Preview for Science?

As of Oct 14, 2026, GPT-4.5 Preview leads Claude 3 Opus in Science at #92 against #138.