Deepseek V3.1
DeepSeek
deepseek/deepseek-v3.1
Reasoning model, 131K context
Context Window
131K
131,072 tokens
Max Output
66K
65,536 tokens
About this model
DeepSeek V3.1 with hybrid thinking mode
This model supports up to 131K tokens of context. It excels at complex reasoning, mathematical problems, and multi-step tasks. It provides strong code generation and debugging capabilities.
Access it through Chuizi.AI with a single ck- API key β no separate DeepSeek account needed.
Highlights
131K context window
66K max output
Advanced reasoning
Strong code generation
Best For
Complex coding tasksAlgorithm designCode reviewTechnical architecture
2025-08-21
Capabilities
ChatReasoningCodetoolscache
Aliases
deepseek-v3.1Pricing (per 1M tokens)
| Pricing (per 1M tokens) | / 1M tokens |
|---|---|
| Input / 1M | $0.29 |
| Output / 1M | $0.44 |
| Cache Read | $0.03 |
Final prices shown
Quick Start
main.py
from openai import OpenAI client = OpenAI( base_url="https://api.chuizi.ai/v1", api_key="ck-your-key-here", ) response = client.chat.completions.create( model="deepseek/deepseek-v3.1", messages=[{"role": "user", "content": "Hello!"}], ) print(response.choices[0].message.content)