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DeepSeek: DeepSeek V4 Flash 0423: AI model

DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model with 284B total and 13B active parameters and a 1M-token context window. Tuned for fast inference and high-throughput workloads, via Hormouz.

Context window:
1,048,576 tokens
Input:
$0.09/1M tokens
Output:
$0.18/1M tokens
Type:
text
  • Tools
  • Streaming
  • Long context

DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model with 284 billion total parameters and 13 billion active, supporting a 1M-token context window. It is built for fast inference and high-throughput workloads while keeping strong reasoning and coding.

The model uses a hybrid attention system for efficient long-context processing. Reasoning-effort levels high and xhigh are supported, with xhigh mapping to maximum reasoning. It suits applications such as coding assistants, chat systems and agent workflows where responsiveness and cost efficiency matter.

Pricing is usage-based: $0.14/M in · $0.28/M out. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4-flash",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

VendorDeepSeek
TypeText
Context window1,048,576 tokens
Pricing$0.09/M in · $0.18/M out
APIChat Completions
CapabilitiesStreaming · Tools

Benchmarks

24.2
Intelligence Index
Better than 43% of models we compared
56.2
Coding Index
Better than 64% of models we compared
22.2
Agentic Index
Better than 52% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
89.4%
HLE
Humanity's Last Exam
34.8%
IFBench
Instruction-following
79.2%
AA-LCR
Long-context reasoning
74.3%
CritPt
Research-level physics reasoning
7.1%
AA Omniscience
Broad factual knowledge accuracy
36.8%
Non-Hallucination
Rate of avoiding fabricated answers
3.9%

Coding

SciCode
Python for scientific computing
45.3%
Terminal-Bench Hard
Agentic coding & terminal use
35.6%

Agentic

τ²-Bench
Tool-use agents in dual-control scenarios
95%
GDPval
Economically valuable tasks
26.9%

Source: Artificial Analysis

3D
Top 36%
1,199Elo
Win rate: 49.3%Avg time: 107s
ASCII Art
Top 79%
1,122Elo
Win rate: 42.8%Avg time: 112s
Code
Top 36%
1,211Elo
Win rate: 48.9%Avg time: 134s
Data Viz
Top 68%
1,136Elo
Win rate: 40.7%Avg time: 95.3s
Game Dev
Top 33%
1,210Elo
Win rate: 50.2%Avg time: 173s
SVG
Top 41%
1,155Elo
Win rate: 48.4%Avg time: 112s
UI Component
Top 52%
1,171Elo
Win rate: 44.7%Avg time: 105s
Website
Top 36%
1,214Elo
Win rate: 49.1%Avg time: 144s

Metrics sourced from Design Arena

Code example

cURL
curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4-flash",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
Python
from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="deepseek/deepseek-v4-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)
JavaScript
import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "deepseek/deepseek-v4-flash",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the DeepSeek: DeepSeek V4 Flash 0423 API, paid in rial

  • Buy credit with an Iranian bank card; no foreign card or account needed.
  • One Hormouz key reaches DeepSeek: DeepSeek V4 Flash 0423 and 600+ other models, and you pay only for what you use.
  • No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Create an accountBuy DeepSeek API access, paid in rial

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FAQ

How much does this model cost?
Billing is usage-based: $0.14 per million input tokens and $0.28 per million output tokens. There is no fixed monthly fee. You pay only for what you use.
What is the context window of DeepSeek V4 Flash?
The model supports a 1M-token context window, and with hybrid attention it enables efficient processing of very large documents and codebases.
How is DeepSeek V4 Flash different from V4 Pro?
V4 Flash is the lighter, efficiency-optimized variant with fewer active parameters, better suited to fast inference and high-volume workloads, while V4 Pro targets the highest quality on complex tasks.
What are the reasoning-effort levels (high and xhigh)?
These levels tune how much the model reasons; xhigh maps to maximum reasoning and suits harder tasks.
How do I access this model from inside Iran?
Create an account on Hormouz and generate an API key. Hormouz provides a stable path to the model from inside Iran, with no foreign credit card required.
Is this model compatible with OpenAI code?
Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key, and your existing SDKs run without a rewrite.

Updated 2026-10-13