GPT-5 Mini vs O3 Mini
As of Oct 14, 2026, GPT-5 Mini leads O3 Mini in 2 of 5 shared categories: Reasoning and Abstraction (ARC).
| Category | GPT-5 Mini | O3 Mini |
|---|---|---|
| General LLM | #128 · #128 in General LLM Margin 87.07482993197279 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #130 · #130 in Reasoning Margin 89.72602739726028 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #21 · Was SOTA · Math Margin 44.44444444444444 Epoch AI benchmarking hub · Aug 7, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #81 · #81 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #146 · #146 in Long context Margin 99.31972789115646 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 | #110 · #110 in Factuality Margin 82.83582089552239 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #41 · #41 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
GPT-5 Mini: $0.6875 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
GPT-5 Mini: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads GPT-5 Mini in General LLM at #7 against #128.
Reasoning: As of Oct 14, 2026, GPT-5 Mini leads O3 Mini in Reasoning at #130 against #133.
Science: As of Oct 14, 2026, O3 Mini leads GPT-5 Mini in Science at #76 against #81.
Long context: As of Oct 14, 2026, O3 Mini leads GPT-5 Mini in Long context at #145 against #146.
Abstraction (ARC): As of Oct 14, 2026, GPT-5 Mini leads O3 Mini in Abstraction (ARC) at #41 against #51.
GPT-5 Mini or O3 Mini?
As of Oct 14, 2026, GPT-5 Mini leads O3 Mini in 2 of 5 shared categories: Reasoning and Abstraction (ARC).
GPT-5 Mini or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads GPT-5 Mini in General LLM at #7 against #128.
GPT-5 Mini or O3 Mini for Reasoning?
As of Oct 14, 2026, GPT-5 Mini leads O3 Mini in Reasoning at #130 against #133.
GPT-5 Mini or O3 Mini for Science?
As of Oct 14, 2026, O3 Mini leads GPT-5 Mini in Science at #76 against #81.