# Claude Fable 5.1 vs DeepSeek V4 Flash High Preview

As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Fable 5.1: $20 per 1M blended tokens.

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

Claude Fable 5.1: closed weights.

DeepSeek V4 Flash High Preview: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in General LLM at #6 against #71.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in Reasoning at #5 against #74.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in Coding › Web dev at #5 against #65.
- Which to pick, Long context: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in Long context at #6 against #68.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek V4 Flash High Preview in Factuality at #1 against #77.

As of Oct 15, 2026, Claude Fable 5.1 is tied for state of the art in Factuality (since Oct 2, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 2026, DeepSeek V4 Flash High Preview is ranked #65 in Coding › Web dev (since Oct 15, 2026; sources LMArena WebDev; methodology v1.0).