Claude Opus 4.7 vs O3 Mini
As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Claude Opus 4.7
Close. Near-SOTA in Reasoning, rank #4.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | Claude Opus 4.7 | O3 Mini |
|---|---|---|
| General LLM | #5 · Near-SOTA · General LLM Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #4 · Near-SOTA · Reasoning Margin 3.4246575342465775 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #10 · #10 in Math Margin 20 Epoch AI benchmarking hub · Apr 16, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Apr 16, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #32 · Was SOTA · Coding › Web dev Margin 28.971962616822424 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #4 · Near-SOTA · Long context Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #20 · Was SOTA · Vision Margin 55.26315789473684 Epoch AI benchmarking hub · Apr 16, 2026 | — |
| Factuality | #12 · #12 in Factuality Margin 9.701492537313428 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #11 · #11 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2026 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
Claude Opus 4.7: $10 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Claude Opus 4.7: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in General LLM at #5 against #7.
Reasoning: As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Reasoning at #4 against #133.
Science: As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Science at #34 against #76.
Long context: As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Long context at #4 against #145.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Abstraction (ARC) at #11 against #51.
Claude Opus 4.7 or O3 Mini?
As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).
Claude Opus 4.7 or O3 Mini for General LLM?
As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in General LLM at #5 against #7.
Claude Opus 4.7 or O3 Mini for Reasoning?
As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Reasoning at #4 against #133.
Claude Opus 4.7 or O3 Mini for Science?
As of Oct 14, 2026, Claude Opus 4.7 leads O3 Mini in Science at #34 against #76.