Compare · 2026-10-14

Claude 3.5 Sonnet vs Claude 3 Opus

As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in 1 of 2 shared categories: Science.

CategoryClaude 3.5 SonnetClaude 3 Opus
General LLM
#140 · Was SOTA · General LLM
Margin 95.23809523809524
LMArena leaderboard dataset · Oct 13, 2026
#9 · #9 in General LLM
Margin —
LMArena leaderboard dataset · Sep 27, 2024
Reasoning
#136 · Was SOTA · Reasoning
Margin 93.83561643835617
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 7, 2024
Math
#43 · #43 in Math
Margin 95.55555555555556
Epoch AI benchmarking hub · Oct 22, 2024
—
Science
#119 · #119 in Science
Margin —
Epoch AI benchmarking hub · Oct 22, 2024
#138 · #138 in Science
Margin —
Epoch AI benchmarking hub · Feb 29, 2024
Coding
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
—
Long context
#126 · Was SOTA · Long context
Margin 85.71428571428571
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
Price per 1M tokens

Claude 3.5 Sonnet: price per 1M tokens is unset in the catalog.

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

Open weights

Claude 3.5 Sonnet: closed weights.

Claude 3 Opus: closed weights.

Which to pick

General LLM: As of Oct 14, 2026, Claude 3 Opus leads Claude 3.5 Sonnet in General LLM at #9 against #140.

Science: As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in Science at #119 against #138.

Claude 3.5 Sonnet · Claude 3 Opus

Claude 3.5 Sonnet or Claude 3 Opus?

As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in 1 of 2 shared categories: Science.

Claude 3.5 Sonnet or Claude 3 Opus for General LLM?

As of Oct 14, 2026, Claude 3 Opus leads Claude 3.5 Sonnet in General LLM at #9 against #140.

Claude 3.5 Sonnet or Claude 3 Opus for Science?

As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in Science at #119 against #138.