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DeepSeek V4.1 Flash is DeepSeek’s latest fast, cost-efficient model with a 1M context window, native multimodal (vision) support, thinking and non-thinking modes, and strong coding, tool-use, and agentic performance.

Specifications

Pricing

A 25% automatic discount is applied to all DeepSeek V4.1 Flash usage on MatterAI.

Quick Start

cURL
OpenAI NodeJS SDK
OpenAI Python SDK

When to Use

DeepSeek V4.1 Flash is ideal for high-volume, cost-sensitive workloads: everyday coding assistance, agentic tool-use loops, document analysis over long contexts, and multimodal (image + text) understanding at scale.