Deepseek Chat V3.1 API Pricing & Quick Start

Name: Deepseek Chat V3.1 API
Brand: DeepSeek

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Pricing

Input Price

$0.2500

/ 1M tokens

NT$ 8

Output Price

$0.9500

/ 1M tokens

NT$ 31

Context Window

164K

tokens

💱 USD/NTD = 32.38 · before tax · updated 07/30/2026

Provider	DeepSeek
Released	August 2025
Model ID	`deepseek/deepseek-chat-v3.1`

Technical specifications

Context window

164K tokens

Reasoning

Yes

Input

Text

Output

Text

Quick Start

Use Deepseek Chat V3.1 via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://bazaarlink.ai/api/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="deepseek/deepseek-chat-v3.1",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://bazaarlink.ai/api/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "deepseek/deepseek-chat-v3.1",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use Deepseek Chat V3.1 via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

Try Now ← All Models

Frequently Asked Questions

What is Deepseek Chat V3.1?

How much does the Deepseek Chat V3.1 API cost?

Deepseek Chat V3.1 costs $0.2500 per 1M input tokens and $0.9500 per 1M output tokens when accessed through BazaarLink.

How do I use Deepseek Chat V3.1 with the OpenAI SDK?

Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "deepseek/deepseek-chat-v3.1". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for Deepseek Chat V3.1?

Deepseek Chat V3.1 supports a context window of 163,840 tokens.

Is Deepseek Chat V3.1 available for free?

Deepseek Chat V3.1 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

Relay integrity checks

No integrity-check data is available for this model yet.

BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.

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