DeepSeek V4.1 Pro

DeepSeek V4.1 Pro is a DeepSeek model tuned for strong reasoning and coding performance at competitive cost. DeepSeek V4.1 Pro is a DeepSeek model tuned for strong reasoning and coding performance at competitive cost. Supports reasoning. Up to 1M context window.

Input / output price: $1.32 / $3.96 per 1M
Context: 1M tokens
Released: Oct 30, 2026

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "deepseek-v4.1-pro".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="deepseek-v4.1-pro",

    messages=[{"role": "user", "content": "Hello!"}],

)

print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "deepseek-v4.1-pro",

  messages: [{ role: "user", content: "Hello!" }],

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "deepseek-v4.1-pro",

    "messages": [{"role": "user", "content": "Hello!"}]

}'

Read docs

Providers

One provider serves this model, priced per 1M tokens after gateway discounts.

Provider	Context	Input	Output	Cache read	Capabilities
Inference.netRetired`inference_net/deepseek-v4.1-pro`	1M	$1.32/M	$3.96/M	$0.132/M

Pricing

USD per 1M tokens on Inference.net, after gateway discounts.

Input: $1.32 per 1M
Output: $3.96 per 1M
Cache read: $0.132 per 1M

Cost by volume

Total cost from 0 to 1T tokens.

$1.32/MInference.net

Apps

Use DeepSeek V4.1 Pro in the tools you already run. Each guide points the app at the Respan gateway.

Setup guides for more apps are in the integration docs.

DeepSeek V4.1 Pro FAQ

Short answers, built from the data on this page.

DeepSeek V4.1 Pro is a model from Deepseek, released on Oct 30, 2026. DeepSeek V4.1 Pro is a DeepSeek model tuned for strong reasoning and coding performance at competitive cost. DeepSeek V4.1 Pro is a DeepSeek model tuned for strong reasoning and coding performance at competitive cost. Supports reasoning. Up to 1M context window.

On the Respan gateway, DeepSeek V4.1 Pro costs $1.32 per 1M input tokens and $3.96 per 1M output tokens on Inference.net, after gateway discounts.

DeepSeek V4.1 Pro is served by Inference.net.

DeepSeek V4.1 Pro accepts up to 1M tokens of context.

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "deepseek-v4.1-pro". To set it up with a coding agent, copy the agent setup prompt at the top of this page.