# Claude Opus 4.5 vs Grok 4.6

As of Oct 15, 2026, Claude Opus 4.5 leads Grok 4.6 in 4 of 7 shared categories: General LLM, Reasoning, Long context, and Factuality.

Claude Opus 4.5: $10 per 1M blended tokens.

Grok 4.6: $3 per 1M blended tokens.

Claude Opus 4.5: closed weights.

Grok 4.6: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.5 leads Grok 4.6 in General LLM at #41 against #61.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.5 leads Grok 4.6 in Reasoning at #30 against #55.
- Which to pick, Science: As of Oct 15, 2026, Grok 4.6 leads Claude Opus 4.5 in Science at #10 against #68.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Grok 4.6 leads Claude Opus 4.5 in Coding › Web dev at #22 against #58.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.5 leads Grok 4.6 in Long context at #20 against #48.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.5 leads Grok 4.6 in Factuality at #40 against #62.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Grok 4.6 leads Claude Opus 4.5 in Abstraction (ARC) at #20 against #49.

As of Oct 15, 2026, Claude Opus 4.5 is a former state-of-the-art holder in Reasoning (since Dec 1, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, Grok 4.6 is ranked #10 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).