Claude Opus 4 vs Gemini 3.8 Flash
As of Oct 14, 2026, Claude Opus 4 leads Gemini 3.8 Flash in 0 of 6 shared categories.
Claude Opus 4
It used to be. Was SOTA in Reasoning.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Claude Opus 4 | Gemini 3.8 Flash |
|---|---|---|
| General LLM | #102 · #102 in General LLM Margin 69.38775510204081 LMArena leaderboard dataset · Oct 13, 2026 | #7 · Was SOTA · General LLM Margin 4.761904761904759 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #97 · Was SOTA · Reasoning Margin 67.12328767123287 LMArena leaderboard dataset · Oct 13, 2026 | #6 · #6 in Reasoning Margin 4.794520547945211 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #29 · #29 in Math Margin 62.22222222222222 Epoch AI benchmarking hub · May 22, 2025 | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 |
| Science | #91 · #91 in Science Margin — Epoch AI benchmarking hub · May 22, 2025 | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · May 22, 2025 | #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 | #70 · #70 in Long context Margin 47.61904761904762 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 | — | #17 · #17 in Factuality Margin 13.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #69 · #69 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 22, 2025 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 |
Claude Opus 4: price per 1M tokens is unset in the catalog.
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
Claude Opus 4: closed weights.
Gemini 3.8 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in General LLM at #7 against #102.
Reasoning: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Reasoning at #6 against #97.
Math: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Math at #5 against #29.
Science: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Science at #4 against #91.
Long context: As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Long context at #5 against #70.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Abstraction (ARC) at #1 against #69.
Claude Opus 4 · Gemini 3.8 Flash
Claude Opus 4 or Gemini 3.8 Flash?
As of Oct 14, 2026, Claude Opus 4 leads Gemini 3.8 Flash in 0 of 6 shared categories.
Claude Opus 4 or Gemini 3.8 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in General LLM at #7 against #102.
Claude Opus 4 or Gemini 3.8 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Reasoning at #6 against #97.
Claude Opus 4 or Gemini 3.8 Flash for Math?
As of Oct 14, 2026, Gemini 3.8 Flash leads Claude Opus 4 in Math at #5 against #29.