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DeepSeek: DeepSeek V4 Flash 0423

by DeepSeek

deepseek/deepseek-v4-flash
HealthyRank #21Down 5 places on last weekOpen weights

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...

Context

1Mtokens

About 1,498 pages of text at once

Max output

944Ktokens

About 1,348 pages in one answer

Intelligence

—

No score published for this model.

Output speed

50tokens/s

A 500-word answer in about 14.1 s

From public market statistics for this model

First token

1.3s

Reasoning models start later

From public market statistics for this model

Health, 30 days

99.89%

25 of 30 days without a fault

IranRouter’s measurements

Price & cost

Every rate in Rial. A request pays only for the tokens it actually uses.

Input249,430IRR / 1M tokens
Output498,861IRR / 1M tokens
Reasoning tokensThe output rate498,861IRR / 1M tokens
Cache read49,886IRR / 1M tokens

With prompt caching, the fixed part of your prompt is billed at the cache-read rate on later requests.

What would this model cost you a month?

Monthly cost

31.43MIRR

1.05M IRR a day, 524 IRR each request

30 days at today’s rate.

Rial price over 90 days

It moves with the exchange rate; the steps are the maker’s own price changes. Built at today’s margin, so approximate if the margin changed in the window.

InputOutput

Performance, 30 days

Health is measured by IranRouter itself: a day counts as healthy unless requests to this model failed on our side or it could not be served. First token and speed come from IranRouter’s traffic, and from public market statistics for this model on days without enough of it.

Daily health99.89%

Time to first token1.35 s

Output speed51 tokens/s

Place in the market

By usage across the global model market.

Daily rank#21

Share of the day’s tokens1.2%

Capabilities

Image inputNo
Audio inputNo
Tool callingYes
JSON outputYes
ReasoningReasoning levels: xhigh, high, none
Web searchNo
Prompt cacheYes
Makes imagesNo
Open weightsYes
On the free planNo
Input
Text
Output
Text

Parameters it accepts

frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_completion_tokensmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_atop_ktop_logprobstop_p

Other benchmarks

Coding index56
Agentic index22

Design contests

  • WebsitesElo: 1,206Win rate: 49%
  • Code (overall)Elo: 1,204Win rate: 49%
  • Game devElo: 1,197Win rate: 50%
  • 3DElo: 1,186Win rate: 49%
4 moreShow less
  • UI componentsElo: 1,159Win rate: 45%
  • SVGElo: 1,152Win rate: 48%
  • Data vizElo: 1,127Win rate: 41%
  • ASCII artElo: 1,107Win rate: 43%

Standard tests

  • GPQA DiamondScore: 86%Tasks: 1,188
  • τ-bench Verified AirlineScore: 75%Tasks: 350

Start in a minute

The official OpenAI and Anthropic SDKs; only the address and the key change.

Base URLhttps://iranrouter.com/v1
Model IDdeepseek/deepseek-v4-flash
API keyCreate one in the dashboard
# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://iranrouter.com/v1",
    api_key="ir-...",
)

r = client.chat.completions.create(
    model="deepseek/deepseek-v4-flash",
    messages=[{"role": "user", "content": "Hello, introduce yourself"}],
)
print(r.choices[0].message.content)
The full guide in the docs: keys, streaming and errors

Peer models

Its family and models with a close score; the last column compares one message’s cost with this model.

No peer models found.

Technical specs

ID
deepseek/deepseek-v4-flash
Maker
DeepSeek
Tokenizer
DeepSeek
Released
Apr 24, 2026
Added to IranRouter
Aug 19, 2026
Context
1,048,576 tokens
Max output
943,717 tokens
Weights
deepseek-ai/DeepSeek-V4-Flash

Scores by Artificial Analysis, Design Arena, as of Oct 31, 2026

DeepSeek: DeepSeek V4 Flash 0423One message about 750 IRRStart with this model