Gemini 3.1 Pro Preview vs Gemini 3.8 Flash
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Gemini 3.8 Flash in 1 of 9 shared categories: Math.
Gemini 3.1 Pro Preview
Yes. Yes on Math (best per dollar). Not the overall leader.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Gemini 3.1 Pro Preview | Gemini 3.8 Flash |
|---|---|---|
| General LLM | #15 · Was SOTA · General LLM Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 | #7 · Was SOTA · General LLM Margin 4.761904761904759 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #14 · Was SOTA · Reasoning Margin 10.273972602739732 LMArena leaderboard dataset · Oct 13, 2026 | #6 · #6 in Reasoning Margin 4.794520547945211 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #3 · Near-SOTA · Math Margin 4.444444444444443 Epoch AI benchmarking hub · Feb 19, 2026 | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 |
| Science | #7 · #7 in Science Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #58 · #58 in Coding › Web dev Margin 53.271028037383175 LMArena leaderboard dataset · Oct 13, 2026 | #27 · #27 in Coding › Web dev Margin 24.29906542056075 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #12 · Was SOTA · Long context Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Long context Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #25 · Was SOTA · Vision Margin 68.42105263157896 Epoch AI benchmarking hub · Feb 19, 2026 | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #18 · #18 in Factuality Margin 14.179104477611943 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in Factuality Margin 13.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #2 · #2 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 19, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
Gemini 3.1 Pro Preview: $4.5 per 1M blended tokens.
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
Gemini 3.1 Pro Preview: closed weights.
Gemini 3.8 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in General LLM at #7 against #15.
Reasoning: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Reasoning at #6 against #14.
Math: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Gemini 3.8 Flash in Math at #3 against #5.
Science: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Science at #4 against #7.
Coding › Web dev: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Coding › Web dev at #27 against #58.
Long context: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Long context at #5 against #12.
Vision: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Vision at #15 against #25.
Factuality: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Factuality at #17 against #18.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Abstraction (ARC) at #1 against #2.
Gemini 3.1 Pro Preview · Gemini 3.8 Flash
Gemini 3.1 Pro Preview or Gemini 3.8 Flash?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Gemini 3.8 Flash in 1 of 9 shared categories: Math.
Gemini 3.1 Pro Preview or Gemini 3.8 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in General LLM at #7 against #15.
Gemini 3.1 Pro Preview or Gemini 3.8 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 3.1 Pro Preview in Reasoning at #6 against #14.
Gemini 3.1 Pro Preview or Gemini 3.8 Flash for Math?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Gemini 3.8 Flash in Math at #3 against #5.