Compare · 2026-10-14

Claude Opus 4.8 vs Grok 4 0709

As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in 6 of 6 shared categories: General LLM, Reasoning, Science, Long context, Factuality, and Abstraction (ARC).

CategoryClaude Opus 4.8Grok 4 0709
General LLM
#20 · #20 in General LLM
Margin 13.605442176870753
LMArena leaderboard dataset · Oct 13, 2026
#106 · #106 in General LLM
Margin 72.10884353741497
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#10 · #10 in Reasoning
Margin 7.534246575342465
LMArena leaderboard dataset · Oct 13, 2026
#110 · #110 in Reasoning
Margin 76.02739726027397
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
#27 · #27 in Science
Margin —
Epoch AI benchmarking hub · May 28, 2026
#51 · #51 in Science
Margin —
Epoch AI benchmarking hub · Jul 9, 2025
Coding
#12 · #12 in Coding
Margin 59.09090909090909
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Agentic
#12 · #12 in Coding › Agentic
Margin 59.09090909090909
Terminal-Bench Harbor Hub · Oct 6, 2026
—
Coding › Web dev
#33 · Was SOTA · Coding › Web dev
Margin 29.90654205607477
LMArena leaderboard dataset · Oct 13, 2026
—
Long context
#10 · Was SOTA · Long context
Margin 6.802721088435391
LMArena leaderboard dataset · Oct 13, 2026
#106 · #106 in Long context
Margin 72.10884353741497
LMArena leaderboard dataset · Oct 13, 2026
Vision
#13 · #13 in Vision
Margin 36.842105263157904
Epoch AI benchmarking hub · May 28, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 9, 2026
Factuality
#21 · #21 in Factuality
Margin 16.417910447761187
LMArena leaderboard dataset · Oct 13, 2026
#96 · #96 in Factuality
Margin 72.38805970149254
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#12 · #12 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · May 28, 2026
#33 · #33 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Jul 9, 2025
Price per 1M tokens

Claude Opus 4.8: $10 per 1M blended tokens.

Grok 4 0709: price per 1M tokens is unset in the catalog.

Open weights

Claude Opus 4.8: closed weights.

Grok 4 0709: closed weights.

Which to pick

General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in General LLM at #20 against #106.

Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Reasoning at #10 against #110.

Science: As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Science at #27 against #51.

Long context: As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Long context at #10 against #106.

Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Factuality at #21 against #96.

Abstraction (ARC): As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Abstraction (ARC) at #12 against #33.

Claude Opus 4.8 · Grok 4 0709

Claude Opus 4.8 or Grok 4 0709?

As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in 6 of 6 shared categories: General LLM, Reasoning, Science, Long context, Factuality, and Abstraction (ARC).

Claude Opus 4.8 or Grok 4 0709 for General LLM?

As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in General LLM at #20 against #106.

Claude Opus 4.8 or Grok 4 0709 for Reasoning?

As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Reasoning at #10 against #110.

Claude Opus 4.8 or Grok 4 0709 for Science?

As of Oct 14, 2026, Claude Opus 4.8 leads Grok 4 0709 in Science at #27 against #51.