Claude Opus 4.5 vs Gemini 3.6 Flash
As of Oct 14, 2026, Claude Opus 4.5 leads Gemini 3.6 Flash in 1 of 7 shared categories: Long context.
Claude Opus 4.5
It used to be. Was SOTA in Reasoning.
Gemini 3.6 Flash
#9 Best recorded rank: #9 in Science, as of Oct 14, 2026.
| Category | Claude Opus 4.5 | Gemini 3.6 Flash |
|---|---|---|
| General LLM | #33 · #33 in General LLM Margin 22.448979591836732 LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in General LLM Margin 12.925170068027214 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #28 · Was SOTA · Reasoning Margin 19.86301369863014 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Reasoning Margin 17.123287671232873 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #16 · #16 in Math Margin 33.33333333333333 Epoch AI benchmarking hub · Nov 24, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #68 · #68 in Science Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #9 · #9 in Science Margin — Epoch AI benchmarking hub · Jul 21, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #53 · Was SOTA · Coding › Web dev Margin 48.598130841121495 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Coding › Web dev Margin 35.51401869158879 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #19 · Was SOTA · Long context Margin 12.925170068027214 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Long context Margin 17.687074829931973 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 21, 2026 |
| Factuality | #36 · #36 in Factuality Margin 27.611940298507463 LMArena leaderboard dataset · Oct 13, 2026 | #20 · #20 in Factuality Margin 15.671641791044777 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #49 · #49 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #13 · #13 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 21, 2026 |
Claude Opus 4.5: $10 per 1M blended tokens.
Gemini 3.6 Flash: $1.5 per 1M blended tokens.
Claude Opus 4.5: closed weights.
Gemini 3.6 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in General LLM at #19 against #33.
Reasoning: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Reasoning at #24 against #28.
Science: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Science at #9 against #68.
Coding › Web dev: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Coding › Web dev at #39 against #53.
Long context: As of Oct 14, 2026, Claude Opus 4.5 leads Gemini 3.6 Flash in Long context at #19 against #26.
Factuality: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Factuality at #20 against #36.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Abstraction (ARC) at #13 against #49.
Claude Opus 4.5 · Gemini 3.6 Flash
Claude Opus 4.5 or Gemini 3.6 Flash?
As of Oct 14, 2026, Claude Opus 4.5 leads Gemini 3.6 Flash in 1 of 7 shared categories: Long context.
Claude Opus 4.5 or Gemini 3.6 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in General LLM at #19 against #33.
Claude Opus 4.5 or Gemini 3.6 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Reasoning at #24 against #28.
Claude Opus 4.5 or Gemini 3.6 Flash for Science?
As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Opus 4.5 in Science at #9 against #68.