DeepSeek V4 Flash
Chatdeepseek/deepseek-v4-flashDeepSeek 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
1M
Max Output Tokens
384K
Released
2026-04-24
Capabilities
Function CallingPrompt Caching
Available Providers
DeepSeekAzureAliyun
Supported Protocols
openaianthropic
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/responsesanthropic
DeepSeek
Input Tokens
$0.14/M
Output Tokens
$0.28/M
Cache Read
$0.0028/M
Protocols
openai
/v1/chat/completionsanthropic
Code Examples
from openai import OpenAIclient = OpenAI(base_url="https://api.ofox.ai/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).
| Category | Arena Score | 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.
Related Models
Frequently Asked Questions
DeepSeek V4 Flash on Ofox.ai costs $0.14/M per million input tokens and $0.28/M per million output tokens. Pay-as-you-go, no monthly fees.
DeepSeek V4 Flash supports a context window of 1M tokens with max output of 384K tokens, allowing you to process large documents and maintain long conversations.
Simply set your base URL to https://api.ofox.ai/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.
DeepSeek V4 Flash supports the following capabilities: Function Calling, Prompt Caching. Access all features through the Ofox.ai unified API.