Claude 3 Opus vs GPT-5 Mini
As of Oct 14, 2026, Claude 3 Opus leads GPT-5 Mini in 1 of 2 shared categories: General LLM.
Claude 3 Opus
#9 Best recorded rank: #9 in General LLM, as of Oct 14, 2026.
GPT-5 Mini
It used to be. Was SOTA in Math.
| Category | Claude 3 Opus | GPT-5 Mini |
|---|---|---|
| General LLM | #9 · #9 in General LLM Margin — LMArena leaderboard dataset · Sep 27, 2024 | #128 · #128 in General LLM Margin 87.07482993197279 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 7, 2024 | #130 · #130 in Reasoning Margin 89.72602739726028 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #21 · Was SOTA · Math Margin 44.44444444444444 Epoch AI benchmarking hub · Aug 7, 2025 |
| Science | #138 · #138 in Science Margin — Epoch AI benchmarking hub · Feb 29, 2024 | #81 · #81 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Coding | — | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Long context | — | #146 · #146 in Long context Margin 99.31972789115646 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 | #110 · #110 in Factuality Margin 82.83582089552239 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #41 · #41 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
Claude 3 Opus: price per 1M tokens is unset in the catalog.
GPT-5 Mini: $0.6875 per 1M blended tokens.
Claude 3 Opus: closed weights.
GPT-5 Mini: closed weights.
General LLM: As of Oct 14, 2026, Claude 3 Opus leads GPT-5 Mini in General LLM at #9 against #128.
Science: As of Oct 14, 2026, GPT-5 Mini leads Claude 3 Opus in Science at #81 against #138.
Claude 3 Opus or GPT-5 Mini?
As of Oct 14, 2026, Claude 3 Opus leads GPT-5 Mini in 1 of 2 shared categories: General LLM.
Claude 3 Opus or GPT-5 Mini for General LLM?
As of Oct 14, 2026, Claude 3 Opus leads GPT-5 Mini in General LLM at #9 against #128.
Claude 3 Opus or GPT-5 Mini for Science?
As of Oct 14, 2026, GPT-5 Mini leads Claude 3 Opus in Science at #81 against #138.