Claude Sonnet 5.5 vs Grok 4 0709
As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in Coding (tied), Coding › Agentic (tied), and Vision (tied).
Grok 4 0709
#33 Best recorded rank: #33 in Abstraction (ARC), as of Oct 15, 2026.
| Category | Claude Sonnet 5.5 | Grok 4 0709 |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 15.425531914893611 LMArena leaderboard dataset · Oct 13, 2026 | #137 · #137 in General LLM Margin 72.87234042553192 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 10.106382978723403 LMArena leaderboard dataset · Oct 13, 2026 | #144 · #144 in Reasoning Margin 77.12765957446808 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | #51 · #51 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2025 |
| 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 | #3 · Near-SOTA · Coding › Web dev Margin 1.5999999999999943 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #11 · #11 in Long context Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #140 · #140 in Long context Margin 74.46808510638297 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #17 · #17 in Factuality Margin 10.465116279069761 LMArena leaderboard dataset · Oct 13, 2026 | #123 · #123 in Factuality Margin 72.09302325581396 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #33 · #33 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2025 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Grok 4 0709: price per 1M tokens is unset in the catalog.
Claude Sonnet 5.5: closed weights.
Grok 4 0709: closed weights.
General LLM: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in General LLM at #29 against #137.
Reasoning: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Reasoning at #18 against #144.
Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Science at #3 against #51.
Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Long context at #11 against #140.
Factuality: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Factuality at #17 against #123.
Claude Sonnet 5.5 · Grok 4 0709
Claude Sonnet 5.5 or Grok 4 0709?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Claude Sonnet 5.5 or Grok 4 0709 for General LLM?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in General LLM at #29 against #137.
Claude Sonnet 5.5 or Grok 4 0709 for Reasoning?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Reasoning at #18 against #144.
Claude Sonnet 5.5 or Grok 4 0709 for Science?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Science at #3 against #51.