# Claude Sonnet 4.5 vs Kimi K3

As of Oct 14, 2026, Claude Sonnet 4.5 leads Kimi K3 in 0 of 7 shared categories.

Claude Sonnet 4.5: $6 per 1M blended tokens.

Kimi K3: $4.125 per 1M blended tokens.

Claude Sonnet 4.5: closed weights.

Kimi K3: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in General LLM at #13 against #49.
- Which to pick, Reasoning: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Reasoning at #7 against #40.
- Which to pick, Science: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Science at #17 against #82.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Coding › Web dev at #11 against #78.
- Which to pick, Long context: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Long context at #8 against #29.
- Which to pick, Factuality: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Factuality at #19 against #50.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.5 in Abstraction (ARC) at #8 against #66.

As of Oct 14, 2026, Claude Sonnet 4.5 is a former state-of-the-art holder in General LLM (since Oct 3, 2025; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, Kimi K3 is tied for state of the art in General LLM (since Oct 13, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).