DeepSeek V4.1 Flash (beta)

deprecated

Intermediate V4.1 release with a new model structure and native image input, 1M context, faster than V4 Flash. Two-day beta from DeepSeek, expires 2026-09-10. Supports extended thinking modes, JSON output, and function calling.

1M context·$0.44 in·$1.32 out·Sep 2026 release·Vision, Reasoning, Tools / functions

Available on

DeepSeek

Providers

Where DeepSeek V4.1 Flash (beta) runs in Big-AGI, with each service's own model ID and USD-per-1M-token rates. The summary above prefers the creator's claim; rates below are each service's own.

ServiceModel IDContextInputOutputCache read

DeepSeek

creatordelisted

deepseek-v4.1-flash-expires-on-0910

$0.44

$1.32

$0.01

Usage mix in Big-AGI: DeepSeek 100%Specs as reported by each service · usage over the last 2 days · refreshed hourly