# GPT-5.5 vs Grok 4 0709

As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in 6 of 6 shared categories: General LLM, Reasoning, Science, Long context, Factuality, and Abstraction (ARC).

GPT-5.5: $11.25 per 1M blended tokens.

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

GPT-5.5: closed weights.

Grok 4 0709: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in General LLM at #22 against #137.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in Reasoning at #26 against #144.
- Which to pick, Science: As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in Science at #30 against #51.
- Which to pick, Long context: As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in Long context at #26 against #140.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in Factuality at #5 against #123.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.5 leads Grok 4 0709 in Abstraction (ARC) at #7 against #33.

As of Oct 15, 2026, GPT-5.5 is near state of the art, rank #5 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; 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).