# Claude 3.7 Sonnet vs DeepSeek V4.1 Flash

As of Oct 15, 2026, Claude 3.7 Sonnet leads DeepSeek V4.1 Flash in 0 of 5 shared categories.

Claude 3.7 Sonnet: price per 1M tokens is unset in the catalog.

DeepSeek V4.1 Flash: $0.23463 per 1M blended tokens.

Claude 3.7 Sonnet: closed weights.

DeepSeek V4.1 Flash: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude 3.7 Sonnet in General LLM at #32 against #184.
- Which to pick, Reasoning: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude 3.7 Sonnet in Reasoning at #29 against #174.
- Which to pick, Science: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude 3.7 Sonnet in Science at #36 against #98.
- Which to pick, Long context: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude 3.7 Sonnet in Long context at #37 against #144.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude 3.7 Sonnet in Abstraction (ARC) at #8 against #80.

As of Oct 15, 2026, Claude 3.7 Sonnet is a former state-of-the-art holder in Long context (since Mar 11, 2025; sources LMArena Text (style-controlled, longer query); methodology v1.0).

As of Oct 15, 2026, DeepSeek V4.1 Flash is state of the art on best per dollar in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).