# Claude Opus 5.5 vs Kimi K2 7 Code

As of Oct 15, 2026, Claude Opus 5.5 leads Kimi K2 7 Code in 2 of 2 shared categories: Science and Coding › Web dev.

Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.

Kimi K2 7 Code: $1.3409000000000002 per 1M blended tokens.

Claude Opus 5.5: closed weights.

Kimi K2 7 Code: open weights.

- Which to pick, Science: As of Oct 15, 2026, Claude Opus 5.5 leads Kimi K2 7 Code in Science at #31 against #46.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads Kimi K2 7 Code in Coding › Web dev at #1 against #57.

As of Oct 15, 2026, Claude Opus 5.5 is tied for state of the art in Reasoning (since Oct 2, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, Kimi K2 7 Code is ranked #46 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).