Claude Opus 5.5 vs Gemini 2.5 Pro
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
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 2.5 Pro
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5.5 | Gemini 2.5 Pro |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #61 · Was SOTA · General LLM Margin 41.49659863945578 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #73 · Was SOTA · Reasoning Margin 50.68493150684932 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 | #58 · #58 in Science Margin — Epoch AI benchmarking hub · Jun 17, 2025 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jun 17, 2025 |
| 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 | #105 · #105 in Coding › Web dev Margin 97.19626168224299 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #58 · Was SOTA · Long context Margin 39.455782312925166 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 | #33 · #33 in Factuality Margin 25.373134328358205 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #48 · #48 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 17, 2025 |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
Gemini 2.5 Pro: $3.4375000000000004 per 1M blended tokens.
Claude Opus 5.5: closed weights.
Gemini 2.5 Pro: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in General LLM at #2 against #61.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Reasoning at #1 against #73.
Science: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Science at #31 against #58.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Coding › Web dev at #1 against #105.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Long context at #1 against #58.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Factuality at #1 against #33.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Abstraction (ARC) at #1 against #48.
Claude Opus 5.5 · Gemini 2.5 Pro
Claude Opus 5.5 or Gemini 2.5 Pro?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5.5 or Gemini 2.5 Pro for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in General LLM at #2 against #61.
Claude Opus 5.5 or Gemini 2.5 Pro for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Reasoning at #1 against #73.
Claude Opus 5.5 or Gemini 2.5 Pro for Science?
As of Oct 14, 2026, Claude Opus 5.5 leads Gemini 2.5 Pro in Science at #31 against #58.