Gemini 3.8 Flash vs O4 Mini
As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in 6 of 6 shared categories: General LLM, Reasoning, Math, Science, Factuality, and Abstraction (ARC).
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
O4 Mini
It used to be. Was SOTA in Math.
| Category | Gemini 3.8 Flash | O4 Mini |
|---|---|---|
| General LLM | #7 · Near-SOTA · General LLM Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #162 · #162 in General LLM Margin 86.17021276595744 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #6 · Near-SOTA · Reasoning Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #168 · #168 in Reasoning Margin 89.8936170212766 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 | #23 · Was SOTA · Math Margin 48.888888888888886 Epoch AI benchmarking hub · Apr 16, 2025 |
| Science | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 | #70 · #70 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
| Coding | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #29 · #29 in Coding › Web dev Margin 22.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #5 · Near-SOTA · Long context Margin 2.659574468085111 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Jul 7, 2025 |
| Vision | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #19 · #19 in Factuality Margin 11.6279069767442 LMArena leaderboard dataset · Oct 13, 2026 | #160 · #160 in Factuality Margin 93.6046511627907 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 | #39 · #39 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
O4 Mini: $1.9250000000000003 per 1M blended tokens.
Gemini 3.8 Flash: closed weights.
O4 Mini: closed weights.
General LLM: As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in General LLM at #7 against #162.
Reasoning: As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Reasoning at #6 against #168.
Math: As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Math at #5 against #23.
Science: As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Science at #4 against #70.
Factuality: As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Factuality at #19 against #160.
Abstraction (ARC): As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Abstraction (ARC) at #1 against #39.
Gemini 3.8 Flash or O4 Mini?
As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in 6 of 6 shared categories: General LLM, Reasoning, Math, Science, Factuality, and Abstraction (ARC).
Gemini 3.8 Flash or O4 Mini for General LLM?
As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in General LLM at #7 against #162.
Gemini 3.8 Flash or O4 Mini for Reasoning?
As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Reasoning at #6 against #168.
Gemini 3.8 Flash or O4 Mini for Math?
As of Oct 15, 2026, Gemini 3.8 Flash leads O4 Mini in Math at #5 against #23.