GPT-5.1 vs O3 Mini
As of Oct 14, 2026, GPT-5.1 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.1
#18 Best current rank: #18 in Math, as of Oct 14, 2026.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | GPT-5.1 | O3 Mini |
|---|---|---|
| General LLM | #47 · #47 in General LLM Margin 31.972789115646265 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #48 · #48 in Reasoning Margin 33.56164383561644 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #18 · #18 in Math Margin 37.77777777777778 Epoch AI benchmarking hub · Nov 13, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #48 · #48 in Science Margin — Epoch AI benchmarking hub · Nov 13, 2025 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Nov 13, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #75 · #75 in Coding › Web dev Margin 69.1588785046729 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #54 · #54 in Long context Margin 36.73469387755103 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #37 · #37 in Factuality Margin 28.358208955223887 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #31 · #31 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Nov 13, 2025 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
GPT-5.1: $3.4375000000000004 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
GPT-5.1: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads GPT-5.1 in General LLM at #7 against #47.
Reasoning: As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Reasoning at #48 against #133.
Science: As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Science at #48 against #76.
Long context: As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Long context at #54 against #145.
Abstraction (ARC): As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Abstraction (ARC) at #31 against #51.
GPT-5.1 or O3 Mini?
As of Oct 14, 2026, GPT-5.1 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
GPT-5.1 or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads GPT-5.1 in General LLM at #7 against #47.
GPT-5.1 or O3 Mini for Reasoning?
As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Reasoning at #48 against #133.
GPT-5.1 or O3 Mini for Science?
As of Oct 14, 2026, GPT-5.1 leads O3 Mini in Science at #48 against #76.