DeepSeek V4.1 Flash

DeepSeek · 1049K token context · multimodal

Pricing: $0.0029 per 1M input tokens, $0.02 per 1M output tokens

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the cost-efficient tier of the V4.1 family. DeepSeek reports that it exceeds V4 Pro on performance, speed, and task...

Pricing

$0.0029 per 1M input tokens and $0.02 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

Prices checked 2026-11-04

Context and limits

The context window is 1,048,576 tokens (1049K).

The maximum output is 384,000 tokens.

When to use DeepSeek V4.1 Flash

DeepSeek V4.1 Flash (model ID `deepseek-v4.1-flash`) takes text, image input and returns text output.

Supported features in the catalog: function calling (tools), streamed responses over SSE, JSON-schema structured output.

Use DeepSeek V4.1 Flash for text generation and chat.

FAQ

How much does DeepSeek V4.1 Flash cost?

$0.0029 per 1M input tokens and $0.02 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

What is the context window and output limit of DeepSeek V4.1 Flash?

The context window is 1,048,576 tokens (1049K). The maximum output is 384,000 tokens.

How do I get access to DeepSeek V4.1 Flash?

Create an API key in the llmka.dev dashboard and send requests to model "deepseek-v4.1-flash" at https://api.llmka.dev/v1. The endpoint is OpenAI-compatible. One key and one balance cover all models on the gateway.

Links

All models and prices · API documentation · Quick start

Available through the llmka.dev gateway: OpenAI- and Anthropic-compatible endpoints, one key, USDT top-up.