# 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: $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.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in General LLM at #29 against #137.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Reasoning at #18 against #144.
- Which to pick, Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Science at #3 against #51.
- Which to pick, Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Long context at #11 against #140.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Sonnet 5.5 leads Grok 4 0709 in Factuality at #17 against #123.

As of Oct 15, 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 15, 2026, Grok 4 0709 is ranked #33 in Abstraction (ARC) (since Oct 15, 2026; sources ARC-AGI; methodology v1.0).