# Claude Opus 5.5 vs DeepSeek V3.2 Exp

As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

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

DeepSeek V3.2 Exp: $0.30500000000000005 per 1M blended tokens.

Claude Opus 5.5: closed weights.

DeepSeek V3.2 Exp: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in General LLM at #2 against #91.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Reasoning at #1 against #81.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Coding › Web dev at #1 against #98.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Long context at #1 against #81.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads DeepSeek V3.2 Exp in Factuality at #1 against #73.

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, DeepSeek V3.2 Exp is a former state-of-the-art holder in Reasoning (since Nov 17, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).