Claude Opus 5.5 vs Gemini 3 Pro
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
Gemini 3 Pro
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5.5 | Gemini 3 Pro |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #16 · Was SOTA · General LLM Margin 10.884353741496597 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #22 · Was SOTA · Reasoning Margin 15.753424657534254 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 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 | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #59 · Was SOTA · Coding › Web dev Margin 54.205607476635514 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #21 · Was SOTA · Long context Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #10 · Was SOTA · Factuality Margin 8.208955223880594 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
Gemini 3 Pro: price per 1M tokens is unset in the catalog.
Claude Opus 5.5: closed weights.
Gemini 3 Pro: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in General LLM at #2 against #16.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Reasoning at #1 against #22.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Coding › Web dev at #1 against #59.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Long context at #1 against #21.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Factuality at #1 against #10.
Claude Opus 5.5 · Gemini 3 Pro
Claude Opus 5.5 or Gemini 3 Pro?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or Gemini 3 Pro for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in General LLM at #2 against #16.
Claude Opus 5.5 or Gemini 3 Pro for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Reasoning at #1 against #22.
Claude Opus 5.5 or Gemini 3 Pro for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Coding › Web dev at #1 against #59.