Deepseek V4.1 Flash API Pricing & Quick Start

Name: Deepseek V4.1 Flash API
Brand: DeepSeek

High-performance AI language model, available via BazaarLink with USD billing (TWD-quoted).

Intelligence#39 / 636

Artificial Analysis Intelligence Index

Speed#37 / 330

194.3

Output tokens per second (median)

Input Price#165 / 437

$0.30NT$ 9

USD / 1M tokens

Output Price#161 / 437

$1.20NT$ 38

USD / 1M tokens

First-token latency#54 / 330

0.96s

Time to first token (AA median)

Provider	DeepSeek
Released	—
Model ID	`deepseek/deepseek-v4.1-flash`

Technical specifications

Context window

1M tokens

Reasoning

Yes

Input

TextImage

Output

Text

Pricing comparison

BazaarLink retail price alongside AA's observed market standard.

BazaarLink price our site

Input$0.30NT$ 9

Output$1.20NT$ 38

Cache read$0.01NT$ 0

Cache write—

3:1 blended (est.)$0.52NT$ 17

All prices per 1M tokens. Supports TWD credit card / official invoice.

Market reference Artificial Analysis

Input$0.30

Output$1.20

Cache readAA not tracked

Cache writeAA not tracked

3:1 blended—

✓ Matches market reference — BazaarLink does not mark up.
Source: artificialanalysis.ai

Independent benchmarks

Scores below come from Artificial Analysis, an independent third party. BazaarLink does not participate in the testing.

Intelligence 40

Coding

Math

MMLU

GPQA

This modelCategory leader

Overall intelligence

#39out of 636 models

Aggregated across academic benchmarks

Time to first token

#54out of 330 models

AA 全球 p50：0.96 秒

Intelligence

Top 6%

This model

Category leader

Median

Top 5 — CodingCoding Index leaderboard

1Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)?/claude-fable-5-182$10 / $50

2Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)?/claude-fable-5-1-xhigh81$10 / $50

3Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback)?/claude-fable-5-1-high79$10 / $50

4GPT-5.6 Sol (xhigh)openai/gpt-5-6-sol-xhigh78$4 / $20

5Claude Opus 5 (Adaptive Reasoning, Max Effort)anthropic/claude-opus-578$5 / $25

AASource: Artificial Analysis · Independent third-party evaluation; not influenced by BazaarLinkView full evaluation on AA →

Quick Start

Use Deepseek V4.1 Flash via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

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

response = client.chat.completions.create(
    model="deepseek/deepseek-v4.1-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

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

const response = await client.chat.completions.create({
  model: "deepseek/deepseek-v4.1-flash",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use Deepseek V4.1 Flash 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 V4.1 Flash?

Deepseek V4.1 Flash is an AI language model by DeepSeek, available via BazaarLink's OpenAI-compatible API.

How much does the Deepseek V4.1 Flash API cost?

Deepseek V4.1 Flash costs $0.30 per 1M input tokens and $1.20 per 1M output tokens when accessed through BazaarLink.

How do I use Deepseek V4.1 Flash with the OpenAI SDK?

Set base_url to "https://api.bazaarlink.ai/v1" and use model ID "deepseek/deepseek-v4.1-flash". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for Deepseek V4.1 Flash?

Deepseek V4.1 Flash supports a context window of 1,048,576 tokens.

Is Deepseek V4.1 Flash available for free?

Deepseek V4.1 Flash is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

Relay integrity checks

Tested endpoints: 27 runs
Independent hosts: 15
Model-family fingerprint match: 70%
Anomalies detected: 27 runs
Data range: past 90 days

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

View the full integrity report →