# Claude Opus 4.8 vs Grok 4.5

As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in 9 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).

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

Grok 4.5: $3 per 1M blended tokens.

Claude Opus 4.8: closed weights.

Grok 4.5: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in General LLM at #21 against #45.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Reasoning at #10 against #44.
- Which to pick, Science: As of Oct 15, 2026, Grok 4.5 leads Claude Opus 4.8 in Science at #14 against #27.
- Which to pick, Coding: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Coding at #12 against #19.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Coding › Agentic at #12 against #19.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Coding › Web dev at #35 against #36.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Long context at #10 against #41.
- Which to pick, Vision: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Vision at #13 against #29.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Factuality at #24 against #30.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Claude Opus 4.8 leads Grok 4.5 in Abstraction (ARC) at #12 against #21.

As of Oct 15, 2026, Claude Opus 4.8 is a former state-of-the-art holder in Coding › Web dev (since Jun 5, 2026; sources LMArena WebDev; methodology v1.0).

As of Oct 15, 2026, Grok 4.5 is ranked #14 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).