Claude Sonnet 4.6 vs O3 Mini
As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
Claude Sonnet 4.6
It used to be. Was SOTA in Long context.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | Claude Sonnet 4.6 | O3 Mini |
|---|---|---|
| General LLM | #32 · #32 in General LLM Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #20 · #20 in Reasoning Margin 14.38356164383562 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #50 · #50 in Science Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #41 · #41 in Coding › Web dev Margin 37.38317757009346 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #20 · Was SOTA · Long context Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #23 · Was SOTA · Vision Margin 63.1578947368421 Epoch AI benchmarking hub · Feb 17, 2026 | — |
| Factuality | #34 · #34 in Factuality Margin 26.11940298507463 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #23 · #23 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
Claude Sonnet 4.6: $6 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Claude Sonnet 4.6: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads Claude Sonnet 4.6 in General LLM at #7 against #32.
Reasoning: As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Reasoning at #20 against #133.
Science: As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Science at #50 against #76.
Long context: As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Long context at #20 against #145.
Abstraction (ARC): As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Abstraction (ARC) at #23 against #51.
Claude Sonnet 4.6 or O3 Mini?
As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
Claude Sonnet 4.6 or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads Claude Sonnet 4.6 in General LLM at #7 against #32.
Claude Sonnet 4.6 or O3 Mini for Reasoning?
As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Reasoning at #20 against #133.
Claude Sonnet 4.6 or O3 Mini for Science?
As of Oct 14, 2026, Claude Sonnet 4.6 leads O3 Mini in Science at #50 against #76.