Claude Sonnet 4.5 vs Grok 4.6
As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in 3 of 7 shared categories: Reasoning, Long context, and Factuality.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
Grok 4.6
#10 Best recorded rank: #10 in Science, as of Oct 15, 2026.
| Category | Claude Sonnet 4.5 | Grok 4.6 |
|---|---|---|
| General LLM | #62 · Was SOTA · General LLM Margin 32.97872340425532 LMArena leaderboard dataset · Oct 13, 2026 | #61 · #61 in General LLM Margin 32.44680851063829 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #51 · Was SOTA · Reasoning Margin 27.65957446808511 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Reasoning Margin 29.787234042553195 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #10 · #10 in Science Margin — Epoch AI benchmarking hub · Aug 12, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #14 · #14 in Coding Margin 68.18181818181819 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #14 · #14 in Coding › Agentic Margin 68.18181818181819 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #86 · Was SOTA · Coding › Web dev Margin 68 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Coding › Web dev Margin 16.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #34 · Was SOTA · Long context Margin 18.085106382978722 LMArena leaderboard dataset · Oct 13, 2026 | #48 · #48 in Long context Margin 25.531914893617028 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #24 · #24 in Vision Margin 65.78947368421052 Epoch AI benchmarking hub · Aug 12, 2026 |
| Factuality | #61 · #61 in Factuality Margin 36.04651162790697 LMArena leaderboard dataset · Oct 13, 2026 | #62 · #62 in Factuality Margin 36.627906976744185 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #66 · #66 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #20 · #20 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 12, 2026 |
Claude Sonnet 4.5: $6 per 1M blended tokens.
Grok 4.6: $3 per 1M blended tokens.
Claude Sonnet 4.5: closed weights.
Grok 4.6: closed weights.
General LLM: As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in General LLM at #61 against #62.
Reasoning: As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in Reasoning at #51 against #55.
Science: As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in Science at #10 against #82.
Coding › Web dev: As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in Coding › Web dev at #22 against #86.
Long context: As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in Long context at #34 against #48.
Factuality: As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in Factuality at #61 against #62.
Abstraction (ARC): As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in Abstraction (ARC) at #20 against #66.
Claude Sonnet 4.5 or Grok 4.6?
As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in 3 of 7 shared categories: Reasoning, Long context, and Factuality.
Claude Sonnet 4.5 or Grok 4.6 for General LLM?
As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in General LLM at #61 against #62.
Claude Sonnet 4.5 or Grok 4.6 for Reasoning?
As of Oct 15, 2026, Claude Sonnet 4.5 leads Grok 4.6 in Reasoning at #51 against #55.
Claude Sonnet 4.5 or Grok 4.6 for Science?
As of Oct 15, 2026, Grok 4.6 leads Claude Sonnet 4.5 in Science at #10 against #82.