What is DeepSeek V4 Flash's context window?

DeepSeek V4 Flash supports a context window of 1,000,000 tokens, allowing you to process large documents and maintain long conversations.

How to use DeepSeek V4 Flash API via Ofox?

Simply set your base URL to https://api.ofox.io/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.

What capabilities does DeepSeek V4 Flash support?

DeepSeek V4 Flash supports the following capabilities: function calling, prompt caching. Access all features through the Ofox.ai unified API.

DeepSeek V4 Flash

Name: DeepSeek V4 Flash
Brand: deepseek
Price: 0.14 USD
Availability: InStock
Rating: 5 (1 reviews)

Chat

deepseek/deepseek-v4-flash

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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 high-throughput workloads, while maintaining strong reasoning and coding performance.

Context Window

Max Output Tokens

384K

Released

2026-04-24

Capabilities

Function CallingPrompt Caching

Available Providers

AzureAliyun

Supported Protocols

openaianthropic

Playground

Open in OfoxChat

Chat with this model right here. Conversations live only in this page and are never stored.

Conversations are not saved — leaving or refreshing this page clears them.

Providers

Aliyun

Input Tokens

$0.14/M

Output Tokens

$0.28/M

Cache Read

$0.028/M

Cache Write

$0.175/M

Web Search

$0.01/R

Protocols

anthropic

Azure

Input Tokens

$0.19/M

Output Tokens

$0.51/M

Cache Read

$0.19/M

Web Search

$0.035/R

Protocols

openai/v1/chat/completions/v1/responses

anthropic

Code Examples

from openai import OpenAI

client = OpenAI(
    base_url="https://api.ofox.io/v1",
    api_key="YOUR_OFOX_API_KEY",
)

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

print(response.choices[0].message.content)

Uptime & Status

Benchmarks

LMArena ↗Evaluated as deepseek-v4-flash

DeepSeek V4 Flash scores 1438 in the Overall category of the LMArena text leaderboard (style control), ranking #70 of 374 models based on 41,568 human preference votes (updated 2026-07-12).

Benchmark scores for deepseek-v4-flash on LMArena
Category	95% CI	Rank	Votes
Overall	1433–1442	#70 of 374	41,568
Hard Prompts	1455–1466	#65 of 374	27,503
Coding	1476–1489	#71 of 369	12,085
Math	1414–1441	#78 of 362	2,133
Creative Writing	1401–1418	#65 of 372	6,649
Instruction Following	1423–1436	#66 of 374	13,952
Chinese	1460–1489	#73 of 344	2,014

Source: LMArena · CC BY 4.0 · Updated 2026-07-12 · Methodology ↗ · Ranks compare models within each category of the LMArena text leaderboard (style control). Scores come from third-party human preference evaluations, not from OFOX.