Claude Sonnet 5.5 vs Gemini 3.6 Flash
As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in 6 of 7 shared categories: Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
Gemini 3.6 Flash
#9 Best recorded rank: #9 in Science, as of Oct 14, 2026.
| Category | Claude Sonnet 5.5 | Gemini 3.6 Flash |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in General LLM Margin 12.925170068027214 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Reasoning Margin 17.123287671232873 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | #9 · #9 in Science Margin — Epoch AI benchmarking hub · Jul 21, 2026 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Coding › Web dev Margin 35.51401869158879 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Long context Margin 17.687074829931973 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 21, 2026 |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #20 · #20 in Factuality Margin 15.671641791044777 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #13 · #13 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 21, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Gemini 3.6 Flash: $1.5 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Gemini 3.6 Flash: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Sonnet 5.5 in General LLM at #19 against #27.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Reasoning at #18 against #24.
Science: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Science at #3 against #9.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Coding › Web dev at #3 against #39.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Long context at #11 against #26.
Vision: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Vision at #1 against #29.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Factuality at #16 against #20.
Claude Sonnet 5.5 · Gemini 3.6 Flash
Claude Sonnet 5.5 or Gemini 3.6 Flash?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in 6 of 7 shared categories: Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Sonnet 5.5 or Gemini 3.6 Flash for General LLM?
As of Oct 14, 2026, Gemini 3.6 Flash leads Claude Sonnet 5.5 in General LLM at #19 against #27.
Claude Sonnet 5.5 or Gemini 3.6 Flash for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Reasoning at #18 against #24.
Claude Sonnet 5.5 or Gemini 3.6 Flash for Science?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Gemini 3.6 Flash in Science at #3 against #9.