Claude Opus 5.5 vs Gemini 4 Argon
As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 4 Argon in 2 of 7 shared categories: Coding › Web dev and Vision.
Claude Opus 5.5
Yes. SOTA in Reasoning (tied), Coding (tied), Coding › Agentic (tied), Coding › Web dev, Long context (tied), and Factuality (tied).
Gemini 4 Argon
Yes. SOTA in General LLM, Reasoning (tied), Long context (tied), and Factuality (tied).
| Category | Claude Opus 5.5 | Gemini 4 Argon |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.0638297872340416 LMArena leaderboard dataset · Oct 13, 2026 | #1 · SOTA · General LLM Margin 0 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | — |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #1 · #1 in Science Margin — Epoch AI benchmarking hub · Sep 30, 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 | #8 · #8 in Coding › Web dev Margin 5.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #7 · #7 in Vision Margin 21.05263157894737 Epoch AI benchmarking hub · Sep 30, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #1 · Co-SOTA · Factuality Margin 0 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 4 Argon: $4.000000000000001 per 1M blended tokens.
Claude Opus 5.5: closed weights.
Gemini 4 Argon: closed weights.
General LLM: As of Oct 15, 2026, Gemini 4 Argon leads Claude Opus 5.5 in General LLM at #1 against #2.
Reasoning: As of Oct 15, 2026, Claude Opus 5.5 and Gemini 4 Argon share #1 in Reasoning.
Science: As of Oct 15, 2026, Gemini 4 Argon leads Claude Opus 5.5 in Science at #1 against #31.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 4 Argon in Coding › Web dev at #1 against #8.
Long context: As of Oct 15, 2026, Claude Opus 5.5 and Gemini 4 Argon share #1 in Long context.
Vision: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 4 Argon in Vision at #4 against #7.
Factuality: As of Oct 15, 2026, Claude Opus 5.5 and Gemini 4 Argon share #1 in Factuality.
Claude Opus 5.5 · Gemini 4 Argon
Claude Opus 5.5 or Gemini 4 Argon?
As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 4 Argon in 2 of 7 shared categories: Coding › Web dev and Vision.
Claude Opus 5.5 or Gemini 4 Argon for General LLM?
As of Oct 15, 2026, Gemini 4 Argon leads Claude Opus 5.5 in General LLM at #1 against #2.
Claude Opus 5.5 or Gemini 4 Argon for Reasoning?
As of Oct 15, 2026, Claude Opus 5.5 and Gemini 4 Argon share #1 in Reasoning.
Claude Opus 5.5 or Gemini 4 Argon for Science?
As of Oct 15, 2026, Gemini 4 Argon leads Claude Opus 5.5 in Science at #1 against #31.