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DeepSeek: DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...

Input → Output
Input / Output price
From $0.02 / $0.30 per 1M
NT$ 0.72 / 10
Cache read / write
From $0.0015 / — per 1M
NT$ 0.049 / —
Context
1M
Released
September 2026

Performance

The last 24 hours, all hosts combined. When one host fails, BazaarLink automatically routes to the next healthy one.

Availability
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Time to first token (TTFT)
—
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Throughput (TPS)
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Trend: last 24 hours, one point per hour; a gap means too few requests in that hour.

Hosts

Each host has its own price, and prices can differ between hosts. You can name a preferred host in your request.

30 hosts · customer prices per million tokensLatency / throughput
HostInput /MOutput /MCache read /MCache write /MFirst tokenThroughputAvailability (24h)
Morph
$0.02
$0.40
$0.004
—1.88s65 tps100.0%
Relace
$0.04
$0.50
$0.005
—0.82s66 tps99.9%
Particle
$0.07
$1.00
$0.03
—0.49s50 tps100.0%
Pareto
$0.07
$0.30
$0.0015
—2.33s103 tps100.0%
RunInfra
$0.11
$0.46
$0.02
—0.55s22 tps100.0%
Prices are customer prices per million tokens.

Benchmarks

All scores come from Artificial Analysis's independent third-party evaluation; BazaarLink takes no part in the testing.

Speed
#29 / 386
234.6
Output tokens per second (median)
Input Price
#152 / 454
$0.21 NT$ 7
USD / 1M tokens
Output Price
#155 / 454
$0.85 NT$ 28
USD / 1M tokens
First-token latency
#23 / 386
0.77s
Time to first token (AA median)
Intelligence
Coding
Math
MMLU
GPQA
This modelBest in category
Intelligence
—
This model—
Best in category65
Median31
Coding TOP 5Coding Index leaderboard
1Muse Spark 1.3 (max)
__aa_parking__58a40aba-a44f-457f-9cca-75b43d4e6934
76$1.25 / $4.25
2GPT-6 Astra (Non-reasoning)
gpt-6-astra-non-reasoning
76— / —
3Agnes 2.5 Pro Alpha (based on Qwen3.5 397B A17B)
agnes-ai/agnes-2-5-pro-alpha
59$0.45 / $0.9
4Solar Pro 4
__aa_parking__1b64aa81-c223-4b8f-909b-82185a234765
53$0.3 / $1.2
5G9v3-39A5B
ai9star/__aa_parking__c5ccda86-5e84-4b69-9247-6d4287fc3336
32$0 / $0
Source: Artificial Analysis · independent third-party evaluation, not influenced by BazaarLink · See the full evaluation on AA →

Price comparison

BazaarLink's price, next to the market standard Artificial Analysis observes.

BazaarLink price This site

Input$0.21NT$ 7
Output$0.85NT$ 28
Cache read$0.02NT$ 0.69
Cache write—
3:1 blend (estimate)$0.37NT$ 12
All unit prices are per 1M tokens. TWD credit cards and Taiwan e-invoices supported. USD/TWD = 32.78 · before tax

Market reference Artificial Analysis

Input$0.29
Output$1.20
Cache readNot tracked by AA
Cache writeNot tracked by AA
3:1 blended$0.52
Our price differs from AA reference by ~27%.
Source: artificialanalysis.ai

Quick start

Just change base_url to use DeepSeek V4.1 Flash through the BazaarLink API.

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)

FAQ

What is DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...

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

DeepSeek V4.1 Flash costs $0.21 per 1M input tokens and $0.85 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.

Explore

More DeepSeek models
Why use DeepSeek V4.1 Flash through BazaarLink?
  • Billed in USD with TWD quotes plus Taiwan e-invoices, so Taiwanese teams do not need an overseas card
  • OpenAI-compatible API, no code rewrite
  • When an upstream source has a problem, the request can try another available source; if none is available you get an error
  • Chinese-language support from a local team
Support
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