# GPT-5.5 vs Grok 4.3

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

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

Grok 4.3: $1.5625000000000002 per 1M blended tokens.

GPT-5.5: closed weights.

Grok 4.3: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in General LLM at #21 against #67.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Reasoning at #25 against #75.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Science at #30 against #41.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Coding › Web dev at #44 against #85.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Long context at #23 against #77.
- Which to pick, Vision: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Vision at #10 against #32.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads Grok 4.3 in Factuality at #5 against #87.

As of Oct 14, 2026, GPT-5.5 is a former state-of-the-art holder in General LLM (since Apr 28, 2026; sources LMArena Text (style-controlled, overall); 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).