Gemini 2.5 Flash Preview 09 2025 vs O3 Mini
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in 2 of 3 shared categories: Reasoning and Long context.
Gemini 2.5 Flash Preview 09 2025
#88 Best current rank: #88 in Factuality, as of Oct 14, 2026.
O3 Mini
It used to be. Was SOTA in Reasoning.
| Category | Gemini 2.5 Flash Preview 09 2025 | O3 Mini |
|---|---|---|
| General LLM | #111 · #111 in General LLM Margin 75.51020408163265 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #112 · #112 in Reasoning Margin 77.3972602739726 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 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 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #105 · #105 in Long context Margin 71.42857142857143 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 | #88 · #88 in Factuality Margin 66.41791044776119 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | — | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
Gemini 2.5 Flash Preview 09 2025: price per 1M tokens is unset in the catalog.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Gemini 2.5 Flash Preview 09 2025: closed weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads Gemini 2.5 Flash Preview 09 2025 in General LLM at #7 against #111.
Reasoning: As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in Reasoning at #112 against #133.
Long context: As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in Long context at #105 against #145.
Gemini 2.5 Flash Preview 09 2025 · O3 Mini
Gemini 2.5 Flash Preview 09 2025 or O3 Mini?
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in 2 of 3 shared categories: Reasoning and Long context.
Gemini 2.5 Flash Preview 09 2025 or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads Gemini 2.5 Flash Preview 09 2025 in General LLM at #7 against #111.
Gemini 2.5 Flash Preview 09 2025 or O3 Mini for Reasoning?
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in Reasoning at #112 against #133.
Gemini 2.5 Flash Preview 09 2025 or O3 Mini for Long context?
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads O3 Mini in Long context at #105 against #145.