# GPT-5.5 vs Kimi K2 0905 Preview

As of Oct 14, 2026, GPT-5.5 leads Kimi K2 0905 Preview in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

Kimi K2 0905 Preview: price per 1M tokens is unset in the catalog.

GPT-5.5: closed weights.

Kimi K2 0905 Preview: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads Kimi K2 0905 Preview in General LLM at #21 against #93.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads Kimi K2 0905 Preview in Reasoning at #25 against #94.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads Kimi K2 0905 Preview in Long context at #23 against #115.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads Kimi K2 0905 Preview in Factuality at #5 against #106.

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, Kimi K2 0905 Preview is ranked #93 in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).