O3 vs O3 Mini
As of Oct 15, 2026, O3 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
| Category | O3 | O3 Mini |
|---|---|---|
| General LLM | #100 · Was SOTA · General LLM Margin 53.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 | #10 · #10 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #117 · Was SOTA · Reasoning Margin 62.765957446808514 LMArena leaderboard dataset · Oct 13, 2026 | #172 · Was SOTA · Reasoning Margin 92.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #20 · Was SOTA · Math Margin 42.22222222222222 Epoch AI benchmarking hub · Apr 16, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #67 · #67 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2025 | #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 |
| Long context | #145 · Was SOTA · Long context Margin 77.12765957446808 LMArena leaderboard dataset · Oct 13, 2026 | #186 · #186 in Long context Margin 98.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #139 · #139 in Factuality Margin 81.3953488372093 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | #37 · #37 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2025 | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
O3: $3.5 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
O3: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 15, 2026, O3 Mini leads O3 in General LLM at #10 against #100.
Reasoning: As of Oct 15, 2026, O3 leads O3 Mini in Reasoning at #117 against #172.
Science: As of Oct 15, 2026, O3 leads O3 Mini in Science at #67 against #76.
Long context: As of Oct 15, 2026, O3 leads O3 Mini in Long context at #145 against #186.
Abstraction (ARC): As of Oct 15, 2026, O3 leads O3 Mini in Abstraction (ARC) at #37 against #51.
O3 or O3 Mini?
As of Oct 15, 2026, O3 leads O3 Mini in 4 of 5 shared categories: Reasoning, Science, Long context, and Abstraction (ARC).
O3 or O3 Mini for General LLM?
As of Oct 15, 2026, O3 Mini leads O3 in General LLM at #10 against #100.
O3 or O3 Mini for Reasoning?
As of Oct 15, 2026, O3 leads O3 Mini in Reasoning at #117 against #172.
O3 or O3 Mini for Science?
As of Oct 15, 2026, O3 leads O3 Mini in Science at #67 against #76.