DeepSeek V4.1 Flash

HOTNEW

Multimodal MoE (552B, 8B active on input) with 1M context and native image input, released by DeepSeek on 2026-09-10; ahead of V4 Pro on agentic benchmarks at a fraction of the price. Supports extended thinking modes, JSON output, and function calling.

1M context·$0.30 in·$1.20 out·Sep 2026 release·Vision, Reasoning, Tools / functions

Available on

DeepSeek

Providers

Where DeepSeek V4.1 Flash 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

creator

deepseek-flash

$0.30

$1.20

$0.01

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