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Compare · 2026-10-15

Claude 3 Opus vs O4 Mini

As of Oct 15, 2026, Claude 3 Opus leads O4 Mini in 1 of 2 shared categories: General LLM.

CategoryClaude 3 OpusO4 Mini
General LLM
#11 · #11 in General LLM
Margin —
LMArena leaderboard dataset · Sep 27, 2024
#162 · #162 in General LLM
Margin 86.17021276595744
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 7, 2024
#168 · #168 in Reasoning
Margin 89.8936170212766
LMArena leaderboard dataset · Oct 13, 2026
Math—
#23 · Was SOTA · Math
Margin 48.888888888888886
Epoch AI benchmarking hub · Apr 16, 2025
Science
#138 · #138 in Science
Margin —
Epoch AI benchmarking hub · Feb 29, 2024
#70 · #70 in Science
Margin —
Epoch AI benchmarking hub · Apr 16, 2025
Coding—
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Long context—
#— · Not enough data
Margin —
LMArena leaderboard dataset · Jul 7, 2025
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
#160 · #160 in Factuality
Margin 93.6046511627907
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)—
#39 · #39 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Apr 16, 2025
Price per 1M tokens

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

O4 Mini: $1.9250000000000003 per 1M blended tokens.

Open weights

Claude 3 Opus: closed weights.

O4 Mini: closed weights.

Which to pick

General LLM: As of Oct 15, 2026, Claude 3 Opus leads O4 Mini in General LLM at #11 against #162.

Science: As of Oct 15, 2026, O4 Mini leads Claude 3 Opus in Science at #70 against #138.

Claude 3 Opus · O4 Mini

Claude 3 Opus or O4 Mini?

As of Oct 15, 2026, Claude 3 Opus leads O4 Mini in 1 of 2 shared categories: General LLM.

Claude 3 Opus or O4 Mini for General LLM?

As of Oct 15, 2026, Claude 3 Opus leads O4 Mini in General LLM at #11 against #162.

Claude 3 Opus or O4 Mini for Science?

As of Oct 15, 2026, O4 Mini leads Claude 3 Opus in Science at #70 against #138.