DeepSeek
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Overview
A highly efficient, lightweight MoE model with 284 billion parameters in total and 13 billion activated parameters, natively supporting context windows of up to one million tokens. It offers fast inference speed, low latency, and cost-effective invocation, delivering well-balanced overall performance. Designed for high-concurrency, lightweight workloads, it is ideally suited for common, essential use cases such as everyday dialogue, content creation, basic RAG applications, and batch text processing.
Input
Text
Output
Text
Features
Prefix Completion
Enable Partial Mode when calling the Qwen API to make the model continue strictly from your provided prefix text.View docsFunction Calling
Use function calling to connect large language models with external tools and systems.View docsCache
Context Cache stores shared prefixes for long-context requests to reduce repeated computation, improve latency, and lower cost.View docsStructured Outputs
Structured Outputs help ensure the model returns a JSON string in the expected format.View docsPricing
- Input$0.2Per 1M tokens
- Output$0.4Per 1M tokens
- Input(Implicit Cache)$0.04Per 1M tokens
Rate Limits & Context
- Max Input1M
- Max Output393K
- Context1M
- TPMTokens Per Minute1M
- RPMRequests Per Minute15K
Built-in Tools
API Reference
Call APICopy success!
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from openai import OpenAI
import os
client = OpenAI(
# If the environment variable is not set, replace it with your Model Studio API key: api_key="sk-xxx"
api_key=os.getenv("DASHSCOPE_API_KEY"),
base_url="https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
)
messages = [{"role": "user", "content": "Who are you"}]
completion = client.chat.completions.create(
model="deepseek-v4-flash-0731", # You can replace this with another deep thinking models
messages=messages,
extra_body={"enable_thinking": True},
stream=True
)
is_answering = False # Indicates whether the response phase has started
print("\n" + "=" * 20 + "Thinking process" + "=" * 20)
for chunk in completion:
if not chunk.choices:
continue
delta = chunk.choices[0].delta
if hasattr(delta, "reasoning_content") and delta.reasoning_content is not None:
if not is_answering:
print(delta.reasoning_content, end="", flush=True)
if hasattr(delta, "content") and delta.content:
if not is_answering:
print("\n" + "=" * 20 + "Full response" + "=" * 20)
is_answering = True
print(delta.content, end="", flush=True)