# Claude Sonnet 5.5 vs Grok 4.3

As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.

Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.

Grok 4.3: $1.5625000000000002 per 1M blended tokens.

Claude Sonnet 5.5: closed weights.

Grok 4.3: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in General LLM at #27 against #67.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Reasoning at #18 against #75.
- Which to pick, Science: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Science at #3 against #41.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Coding › Web dev at #3 against #85.
- Which to pick, Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Long context at #11 against #77.
- Which to pick, Vision: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Vision at #1 against #32.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads Grok 4.3 in Factuality at #16 against #87.

As of Oct 14, 2026, Claude Sonnet 5.5 is tied for state of the art in Coding (since Oct 6, 2026; sources Terminal-Bench 4.0; methodology v1.0).

As of Oct 14, 2026, Grok 4.3 is ranked #32 in Vision (since Oct 14, 2026; sources GDP.pdf; methodology v1.0).