# Claude Opus 4.6 vs DeepSeek V4 Flash High Preview

As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Opus 4.6: $10 per 1M blended tokens.

DeepSeek V4 Flash High Preview: price per 1M tokens is unset in the catalog.

Claude Opus 4.6: closed weights.

DeepSeek V4 Flash High Preview: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in General LLM at #4 against #71.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in Reasoning at #2 against #74.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #35 against #65.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in Long context at #2 against #68.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads DeepSeek V4 Flash High Preview in Factuality at #3 against #77.

As of Oct 14, 2026, Claude Opus 4.6 is near state of the art, rank #2 in Reasoning (since Oct 14, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 14, 2026, DeepSeek V4 Flash High Preview is ranked #65 in Coding › Web dev (since Oct 14, 2026; sources LMArena WebDev; methodology v1.0).