Gemini 3.1 Pro Preview vs O3 Mini
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
Gemini 3.1 Pro Preview
Yes. Yes on Math (best per dollar). Not the overall leader.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | Gemini 3.1 Pro Preview | O3 Mini |
|---|---|---|
| General LLM | #15 · Was SOTA · General LLM Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #14 · Was SOTA · Reasoning Margin 10.273972602739732 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #3 · Near-SOTA · Math Margin 4.444444444444443 Epoch AI benchmarking hub · Feb 19, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #7 · #7 in Science Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #58 · #58 in Coding › Web dev Margin 53.271028037383175 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #12 · Was SOTA · Long context Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #25 · Was SOTA · Vision Margin 68.42105263157896 Epoch AI benchmarking hub · Feb 19, 2026 | — |
| Factuality | #18 · #18 in Factuality Margin 14.179104477611943 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #2 · #2 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
Gemini 3.1 Pro Preview: $4.5 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Gemini 3.1 Pro Preview: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads Gemini 3.1 Pro Preview in General LLM at #7 against #15.
Reasoning: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Reasoning at #14 against #133.
Science: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Science at #7 against #76.
Long context: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Long context at #12 against #145.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Abstraction (ARC) at #2 against #51.
Gemini 3.1 Pro Preview · O3 Mini
Gemini 3.1 Pro Preview or O3 Mini?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
Gemini 3.1 Pro Preview or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads Gemini 3.1 Pro Preview in General LLM at #7 against #15.
Gemini 3.1 Pro Preview or O3 Mini for Reasoning?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Reasoning at #14 against #133.
Gemini 3.1 Pro Preview or O3 Mini for Science?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads O3 Mini in Science at #7 against #76.