Claude Opus 4.6 vs O1 Preview
As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in 4 of 4 shared categories: General LLM, Reasoning, Science, and Long context.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
O1 Preview
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 4.6 | O1 Preview |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #129 · Was SOTA · General LLM Margin 87.75510204081633 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #137 · Was SOTA · Reasoning Margin 94.52054794520548 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #125 · #125 in Science Margin — Epoch AI benchmarking hub · Sep 12, 2024 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #135 · Was SOTA · Long context Margin 91.83673469387755 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | — | #73 · #73 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 12, 2024 |
Claude Opus 4.6: $10 per 1M blended tokens.
O1 Preview: price per 1M tokens is unset in the catalog.
Claude Opus 4.6: closed weights.
O1 Preview: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in General LLM at #4 against #129.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in Reasoning at #2 against #137.
Science: As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in Science at #32 against #125.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in Long context at #2 against #135.
Claude Opus 4.6 or O1 Preview?
As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in 4 of 4 shared categories: General LLM, Reasoning, Science, and Long context.
Claude Opus 4.6 or O1 Preview for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in General LLM at #4 against #129.
Claude Opus 4.6 or O1 Preview for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in Reasoning at #2 against #137.
Claude Opus 4.6 or O1 Preview for Science?
As of Oct 14, 2026, Claude Opus 4.6 leads O1 Preview in Science at #32 against #125.