Gemini 2.5 Flash Preview 09 2025 vs Gemini 3.8 Flash
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads Gemini 3.8 Flash in 0 of 4 shared categories.
Gemini 2.5 Flash Preview 09 2025
#88 Best current rank: #88 in Factuality, as of Oct 14, 2026.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Gemini 2.5 Flash Preview 09 2025 | Gemini 3.8 Flash |
|---|---|---|
| General LLM | #111 · #111 in General LLM Margin 75.51020408163265 LMArena leaderboard dataset · Oct 13, 2026 | #7 · Was SOTA · General LLM Margin 4.761904761904759 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #112 · #112 in Reasoning Margin 77.3972602739726 LMArena leaderboard dataset · Oct 13, 2026 | #6 · #6 in Reasoning Margin 4.794520547945211 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 |
| Science | — | #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 | — | #27 · #27 in Coding › Web dev Margin 24.29906542056075 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #105 · #105 in Long context Margin 71.42857142857143 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Long context Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #88 · #88 in Factuality Margin 66.41791044776119 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in Factuality Margin 13.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
Gemini 2.5 Flash Preview 09 2025: price per 1M tokens is unset in the catalog.
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
Gemini 2.5 Flash Preview 09 2025: closed weights.
Gemini 3.8 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in General LLM at #7 against #111.
Reasoning: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in Reasoning at #6 against #112.
Long context: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in Long context at #5 against #105.
Factuality: As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in Factuality at #17 against #88.
Gemini 2.5 Flash Preview 09 2025 · Gemini 3.8 Flash
Gemini 2.5 Flash Preview 09 2025 or Gemini 3.8 Flash?
As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads Gemini 3.8 Flash in 0 of 4 shared categories.
Gemini 2.5 Flash Preview 09 2025 or Gemini 3.8 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in General LLM at #7 against #111.
Gemini 2.5 Flash Preview 09 2025 or Gemini 3.8 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in Reasoning at #6 against #112.
Gemini 2.5 Flash Preview 09 2025 or Gemini 3.8 Flash for Long context?
As of Oct 14, 2026, Gemini 3.8 Flash leads Gemini 2.5 Flash Preview 09 2025 in Long context at #5 against #105.