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DeepSeek V4.1 Flash 1017 Fast

Available
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Description

DeepSeek V4.1 Flash 1017 Fast is a speed-optimized variant of DeepSeek V4.1 Flash with native multimodal visual understanding and a 1M-token context window. Output speed can reach up to 300 tokens per second, for low-latency reasoning and tool-driven workflows.

At a Glance

Key pricing and model details available for this model.

Input price

$0.26

per 1M tokens

Output price

$1.26

per 1M tokens

Context window

1.0M

tokens

Hallucination rate

0%

Token Pricing

Token pricing normalized to per-million-token rates.

Input / 1M tokens

$0.26

Output / 1M tokens

$1.26

Cache Read / 1M tokens

$0.0060

Token Pricing Details

Rates are shown per 1M tokens for easier comparison.

Input / 1M tokens$0.26
Input unit1M tokens
Output / 1M tokens$1.26
Output unit1M tokens
Cache Read / 1M tokens$0.0060
Cache Read unit1M tokens

Feature Availability

Capabilities explicitly listed in the current payload.

LLM

Available

Yes

Vision

Available

Yes

Function calling

Available

Yes

Reasoning

Available

Yes

Service tiers

Not listed

No

Reasoning Effort Levels

none
low
high
max

Supported Parameters

frequency_penalty
logit_bias
max_completion_tokens
presence_penalty
reasoning_effort
stop
temperature
top_p
tools
tool_choice

Code Samples

Quick start with the Routeway API

import OpenAI from 'openai';

const openai = new OpenAI({
  baseURL: "https://api.routeway.ai/v1",
  apiKey: "<YOUR_API_KEY>",
});

async function main() {
  const completion = await openai.chat.completions.create({
    model: "deepseek-v4.1-flash-1017-fast",
    messages: [
      {
        role: "user",
        content: "Explain quantum computing in simple terms"
      }
    ]
  });

  console.log(completion.choices[0].message);
}

main();
DeepSeek V4.1 Flash 1017 Fast API - Language AI by deepseek-ai | Routeway | Routeway