Claude Opus 5 vs Gemini 3.1 Pro Preview
As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in 6 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
Gemini 3.1 Pro Preview
Yes. Yes on Math (best per dollar). Not the overall leader.
| Category | Claude Opus 5 | Gemini 3.1 Pro Preview |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #15 · Was SOTA · General LLM Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 6.849315068493155 LMArena leaderboard dataset · Oct 13, 2026 | #14 · Was SOTA · Reasoning Margin 10.273972602739732 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #3 · Near-SOTA · Math Margin 4.444444444444443 Epoch AI benchmarking hub · Feb 19, 2026 |
| Science | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #7 · #7 in Science Margin — Epoch AI benchmarking hub · Feb 19, 2026 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 | #58 · #58 in Coding › Web dev Margin 53.271028037383175 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · Long context Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #25 · Was SOTA · Vision Margin 68.42105263157896 Epoch AI benchmarking hub · Feb 19, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 3.731343283582092 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Factuality Margin 14.179104477611943 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #2 · #2 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 19, 2026 |
Claude Opus 5: $10 per 1M blended tokens.
Gemini 3.1 Pro Preview: $4.5 per 1M blended tokens.
Claude Opus 5: closed weights.
Gemini 3.1 Pro Preview: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in General LLM at #11 against #15.
Reasoning: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Reasoning at #9 against #14.
Science: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 5 in Science at #7 against #12.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Coding › Web dev at #6 against #58.
Long context: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Long context at #9 against #12.
Vision: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Vision at #12 against #25.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Factuality at #4 against #18.
Abstraction (ARC): As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 5 in Abstraction (ARC) at #2 against #3.
Claude Opus 5 · Gemini 3.1 Pro Preview
Claude Opus 5 or Gemini 3.1 Pro Preview?
As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in 6 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5 or Gemini 3.1 Pro Preview for General LLM?
As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in General LLM at #11 against #15.
Claude Opus 5 or Gemini 3.1 Pro Preview for Reasoning?
As of Oct 14, 2026, Claude Opus 5 leads Gemini 3.1 Pro Preview in Reasoning at #9 against #14.
Claude Opus 5 or Gemini 3.1 Pro Preview for Science?
As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 5 in Science at #7 against #12.