O3 Mini vs Qwen3 5 Flash
As of Oct 15, 2026, O3 Mini leads Qwen3 5 Flash in 1 of 4 shared categories: General LLM.
O3 Mini
It used to be. Was SOTA in Reasoning.
Qwen3 5 Flash
#66 Best recorded rank: #66 in Science, as of Oct 15, 2026.
| Category | O3 Mini | Qwen3 5 Flash |
|---|---|---|
| General LLM | #10 · #10 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 | #154 · #154 in General LLM Margin 81.91489361702128 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #172 · Was SOTA · Reasoning Margin 92.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 | #157 · #157 in Reasoning Margin 84.04255319148936 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 | #66 · #66 in Science Margin — Epoch AI benchmarking hub · Feb 25, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | — | #114 · #114 in Coding › Web dev Margin 90.4 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #186 · #186 in Long context Margin 98.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 | #159 · #159 in Long context Margin 84.57446808510639 LMArena leaderboard dataset · Oct 13, 2026 |
| Factuality | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 | #131 · #131 in Factuality Margin 76.74418604651163 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 | — |
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Qwen3 5 Flash: price per 1M tokens is unset in the catalog.
O3 Mini: closed weights.
Qwen3 5 Flash: closed weights.
General LLM: As of Oct 15, 2026, O3 Mini leads Qwen3 5 Flash in General LLM at #10 against #154.
Reasoning: As of Oct 15, 2026, Qwen3 5 Flash leads O3 Mini in Reasoning at #157 against #172.
Science: As of Oct 15, 2026, Qwen3 5 Flash leads O3 Mini in Science at #66 against #76.
Long context: As of Oct 15, 2026, Qwen3 5 Flash leads O3 Mini in Long context at #159 against #186.
O3 Mini or Qwen3 5 Flash?
As of Oct 15, 2026, O3 Mini leads Qwen3 5 Flash in 1 of 4 shared categories: General LLM.
O3 Mini or Qwen3 5 Flash for General LLM?
As of Oct 15, 2026, O3 Mini leads Qwen3 5 Flash in General LLM at #10 against #154.
O3 Mini or Qwen3 5 Flash for Reasoning?
As of Oct 15, 2026, Qwen3 5 Flash leads O3 Mini in Reasoning at #157 against #172.
O3 Mini or Qwen3 5 Flash for Science?
As of Oct 15, 2026, Qwen3 5 Flash leads O3 Mini in Science at #66 against #76.