DeepSeek V4 Flash 0731

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deepseek/deepseek-v4-flash-0731
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DeepSeek V4 Flash 0731 is the 2026-07-31 dated snapshot of DeepSeek's efficiency-optimized Mixture-of-Experts model, with 284B total parameters and 13B activated parameters. It is built for fast inference and high-throughput workloads while staying strong on coding and analytical tasks. It supports tool use and prompt caching; it exposes no separate thinking mode. Context window: 1M tokens, output: 384K. The unusually large 384K output ceiling suits jobs that emit long artifacts — full file rewrites, bulk translation, generated reports — in a single response. Available via OpenAI and Anthropic protocols through Ofox.

Context Window
1M
Max Output Tokens
384K
Released
2026-07-31
Capabilities
Function CallingPrompt Caching
Available Providers
VolcengineBedrock2
Supported Protocols
openaianthropic

Providers

Bedrock2
Input Tokens
$0.44/M
Output Tokens
$1.32/M
Cache Read
$0.014/M
Protocols
openai/v1/chat/completions
Volcengine
Input Tokens
$0.44/M
Output Tokens
$1.32/M
Cache Read
$0.014/M
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-0731",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)


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

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Frequently Asked Questions

DeepSeek V4 Flash 0731 on Ofox.ai costs $0.44/M per million input tokens and $1.32/M per million output tokens. Pay-as-you-go, no monthly fees.